I understand you, I think....My parents were more absent then pushy, but that has similar effects on the developing your brain/s. BUT- your parents are not you, neither you are your parents. They are merely humans who combined to make you; what you feel you owe them is likely not owed, because- you didn't choose them, and they didn't choose you; its just how it is. If I find a sandwich, I don't have to pay for it
If you give your parents power over you, then you'll be a slave to something you can't be certain of; ie. that your parents know what is right. How can they or anyone know what is right for you except for you?
Likely your parents will ALWAYS nag you, but that doesn't equate to you having to do. I guess the drive to not disappoint is strong; but, like I said, at the end of your life I highly doubt you'll be concerned over how much you pleased your parents or the world; you'll most likely be wondering whether you loved your own people enough. Love and bonds don't equate.
Subconcious push- CONCIOUSLY push back. Its your brain after all, just a relatively inaccessible level. If in doubt, do the opposite, and eat more donuts :D
Thats the problem. If the thing which drives you to happiness makes you unhappy, you will never find it- ie. true happiness. However, if happiness drives you to seek true happiness, then you have already found it, and can hence stop looking.
I'm only replying to you Uniter because I think what your voicing is a common thing in our generation; this odd desire to please our arents to please ourselves; coming from a pretty weird home myself, I doubt I could ever please my parents, so I simply do not try. They are as flawed as everyone, and they know it. I won't go where they push, because they are pushing me the wrong way. In fact, I simply push back.
Its good to try and define a comfortable life IMO. Does it mean money, a family, a successful career, an ideological change of the world, getting drunk, beating up NAZI's, making music, flying kites...? To me, it is transcending the human boredom of 24 hour clock time and accepting no imposition from the force of force.
Nothing can touch you, as in not-a-thing, unless you allow it. Strengthen your will against such trangressions! And maybe see that living a life for the sake of others possible happiness is a circular path to the grave.
Die in peace

You are free now and forever more, and always was/will/and ever shall be until the end of time which ends with you and started with you!