I just don't get it....T.T

It is really is my problem???
It is my fault???
I shouldn't study in college???

Maybe i really change a lot in my attitude, maybe i really had done something fault...
and 1 thing for sure is....I really make them worried so much about me.....
I know that,support me to study in college wasn't a easy thing...
and I'm trying my best effort to get a well result for me,and also for them....
I just don't want them feel disappointed on me.....i'm tried my best ady.....
but what's the result at the end?
They just still can't fully believed in me at all!
Think that I'm just keep play play,waste my time but not study hard....
What the point now!?
I know parents are owaz worried about their children....but....
Dad,Mom.....
I am big enough to think what should i do or shouldn't.
Why just keep pre-judge me like this?????