should I tell them

i talked to my mom about my depression and problems. after a long day of low i feel a lot better now. i was gonna confront my friends and the rest of my family but im not sure if i should. what if im just doing this for attention? what if its not as big of a deal as i thought it was? i had a nervous breakdown in school yesterday. that means something right? im not going crazy am i? is what im doing right? sorry for all the questions, im just not sure what im doing anymore but im afraid i have to finish what i started, i just dont know if its right or not. if i do im not sure i should tell them my suicide thoughts. i think about it but i havent tried anything. its not a big deal is it? :/