Father.

I don't know whats going on with parents these days. Maybe he just so used to bossing around employees and shit that he brings it home. Try not to take everything he says to you to heart. Try not to " people please' so much. If your dad has always been that way, then I guess it's time to ask yourself whether you want to continue to worry so much about his opinions of you, i mean, if he puts down everything you do, fuck it. just do the things your doing for yourself. Just have a whatever attitude. We know that you can't ignore him, like the profound words of Bliss suggested, he's your dad. But you CAN take what he says with a grain of salt.

Yeah, my dad was like that. I never liked him. I just ignored and avoided him as much as I could. And then my mom kicked him out of the house.
I mean honestly, talking to him or communicating in some way that you don't like what he's doing is the best thing you could do to let him know. But beyond that, it's really not that simple.

I hope you solve this. (:

Ignore him. If you think you are doing a good job, don't let anybody tell you otherwise.

i suggest you do what YOU want, to the level you are willing to go to. your dad has his own life, he doesnt need to control yours by making you feel inadequate. my dad is similar - i made it clear that i was doing what i wanted to do, for me, not for anyone else, and he soon got the message. be true to yourself, and remember, your dad probably wishes he could be in your position again, without the ties and responsibilities he has now.