I feel like cryin all the time.?

i may be depressed? dunt no any good sites that can help me to understand if i am. i cant sleep i just lay there all nite all sorts of thingz go though my head. i fell like i wanna cry all the time. i uslally cry myself to sleep i feel embred about talkin 2 family and freinds i think there laugh at me silly i no im 18 yrs old. i have had a problem recinly which ma parent does no bout but i tihnk she thinks im ok now n got ova it but deep down i dont thnik i have i shud reli spek to her n tell her how i feel can any1 help. do they no thingz i can do to make my self feel betta? any ome expericence? tahks for takin the time 2 read this x