what do you do when you feel so bad?

I know many people but Im still feel lonely sometimes i feel so bad and i get a depresed, really i don't know why but it's seem like a prison that i can't escape and there isn't anyone who can help me so i wanna cry but i can't or i wanna fly but i don't have my wings.

maybe i wanna back home and live my life there, many things that i can't do here or maybe i feel lonely uhh yes i think it is but i don't have a reason, sometimes i lose my way and i don't know where i going.

I wanna live my life but the sad thing is that i don't know how to do it i'm losing my time with my dreams that never are true how stupid i am because i don't know nothing about nothing,  Im ashamed of my life because it's empty Im getting sick of my life but i wanna change it but i need to know how to do it....