Gta san adreas how do i do missions? -

Well i just got multiplayer to work i go to a server i get alot of money and die and lose all of it like wtf.. and igot the mmoney from welfare... so i was just wondering where do or how do i earn money from missions right??? but where are the missions cant find them????|::::|yo ur mad slow and dumb no offense. first tell ur which game system are u using, and use cheatcodes. ill help