am I stupid for not being open about my feelings?

I'm 15 and everyone around me have problems...some of my friends aren't really intrested knowing what I feel...my parents would always ask me if im okay...its so hard not to cry in front of them...I want someone to confort me...someone who I can talk to...some of my friends said that i can rely on them...even my parents say that...its just...its hard to be open...and I would be questioning life...why is it so hard to find people who I can trust...i mean..its not that i dont trust my family and friends...its just that...they would force me to listen to their opinions...not help me cope with my problems...