Oh, what the hell: Tanu, I've been biting my tongue, but here's my advice for you:
It sounds to me like a symptom of your nervous disorder is to make things more complicated in your head than they really are, possibly as a way of avoiding certain things. And to be brutally frank, it sounds like your self-pitying is getting in the way of achieving things. I understand you're having panic attacks and depression, and that those are very real, tough things to deal with, but the only way you're going to deal with them is to force yourself to be positive and active and to change the situation you're in.
Either your parents are crazy arseholes, or you're over-reacting to their attempts at help, or both. Telling you not to apply for jobs because you might get a manager that makes you cry is fucking awful parenting, whatever the motivation, to the point where I wonder if you're misinterpreting or exaggerating in your head in order to give yourself distractions and inconsequential things to waste your energy on. If this is not the case, and your father really did pull that shit, it is still your responsibility to yourself to recognise that kind of behaviour as detrimental and ridiculous and not allow it to spin you out. Whatever the truth, here's my advice:
1) Get a job, unconnected to your family. I know you're finding this difficult, but it sounds like you're going about it in very weird, convoluted ways. You don't need to tell your prospective employers about you owning a company or whatever (I don't even understand that bit, sounds like overcomplicating things). Googling products isn't going to work. You want blue-collar work, all the little details don't matter. You know what employers want from bc workers? Someone who shows up on time, works hard and doesn't cause trouble. All your CV need convey is "worked as butcher for family, knows what hard work is, isn't a serial killer".
Things may work a little differently where you live, but a variant on this should work: spend all day every day going round every single factory, restaurant, fast food joint, bar, pub, temp agency or whatever, near you, speaking to someone face to face and handing in your CV. Don't be weird or over-talkative, just friendly, polite and succinct. Eventually, somewhere will need a grunt and give you a call. Keep expanding your radius until you get something. The economy may be fucked, but jobs still need doing and companies are still making money. If you can't get a job, you're either using the wrong criteria or the wrong techniques. Examine these and adjust them. If you hear yourself thinking "I can't get a job, it is impossible", then know that you are lying to and oppressing yourself.
2) Explain your very simple plan to your parents (ie getting a job unconnected from them). The worst action they can take is throw you out and make you homeless. If they actually do this, they're the worst parents ever and you'll simply have to refuse to go until it's not disastrous for you. Any negative reaction less than that is something you can simply ignore.
This step is simply to give yourself a strong position from which to conduct rational dialogue with them. If they throw any bullying or bad ideas your way, you can simply say "no, this is what I'm doing, it's not changing, and I'd appreciate your support." This is all you need say to them. Don't let them troll you into pointless arguments, this is where all your energy gets wasted and your nerves get frazzled. Whenever it starts to happen, just walk away. And remember that they're weak humans just like you. They're probably pulling all this shit because they're afraid of losing you, or they don't want you to make the mistakes they made. Or maybe they're just crazy arseholes. Whatever the case, you are an adult and the strong, young lifeblood of the family. Remember that.
3) Once that job happens, stick at it. Keep your head down and be a good little wage-monkey. Mistakes I have made in the past include being too enthusiastic, overly helpful and nakedly ambitious, and thereby pissing off my co-workers and superiors. For the first six months at least, just be a steady, reliable worker.
4) You will now have some independence and a stronger position from which to plan your life.
If you want to keep living with your parents, then you can contribute financially and set some rules about how that arrangement will work, safe in the knowledge that if they take that arsehole step of throwing you out, you can go rent a crappy place to live, and survive. Again, I hope that this is not something they'd do, and instead they will respect you for sorting shit out.
Of course, living with your parents in their house is always going to carry certain irritations with it. Until you're the main earner of the household, or they're old and decrepit enough to entirely rely on you, there's going to be power issues and the risk of infantilisation. This is what you are avoiding by setting some rules to make sure everyone gets along as much as possible, and by simply ignoring any attempts of theirs to control you.
If you want to move out, then try to leave on good terms. But if they bully or hang the threat of not speaking to you ever again or whatever over you, then just ignore it. Be the better person. They'll come round (and, again, if not they're crazy arseholes and you're better off without them).
At the very least, you'll be able to afford regular therapy, which will also help strengthen you. (If you feel it's not helping, or making you worse, get a different therapist, until you find one that works for you.)
You can also now try to plan a career. Looking for interesting jobs is a lot easier when you've got a steady wage. Want to get into, for example, game design? Read articles on how to do that. Dedicate spare time to improving yourself in that direction. Get prepared and confident and well-informed. Chase your dream. But all this starts with baby-steps 1-3.
The bottom line is, Tanu: change things, be strong. If something appears to be an impossible obstacle, take a step back and ask yourself if that's really true.
Again, sorry if this all comes across as horribly patronising or misinformed, but it is mostly based on lessons I learnt myself the hard way, over far too long a time.
