How come people think that I am an idiot because I am disabled and not independent at this age?

So I am 26 years old and about to turn 27 years old and people have been getting on my butt because I still live with my parents. I have bipolar disorder and I still live with my parents in my city. A lot of people have been criticizing me for not working and staying at home all day. My friend andrew has been a jerk around me lately and criticizes me for not taking advice from him. He said that if I don't take small advice from him like about using a better camera then it means that I won't listen when it comes to serious matters like a boss telling me to do things at work. He says he cares about me but it seems like he doesn't. I want to use my 5 year old casio camera to film videos and he's upset over it since it just doesn't record in HD. He wants me to use my samsung galaxy s5 phone to record videos but I don't want to. I think my casio records better videos than a sony or a camera phone. Everyone criticizes me for everything. Andrew and the others have been criticizing me recently for getting my parents to help buy plane tickets to vietnam and helping me pay for my wedding. Andrew says that I am a jerk for asking my parents to get out a loan when it is clear that they are suffering financially and says that you ain't gonna get the loan you idiot. He said that to me and it was hurtful. Why is he such a jerk to me? Why does he criticize me for my camera? Why does he say that he cares about me when he does all of this stuff?

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