How to put the man who molested me and my cousin in jail?

when was little 5 years old at the most my aunties boyfriend molested me my mom and dad were never together and i was at my dad's for the weekend and one day when my dad was at work and there were no one home my aunties boyfriend was at home and i was playing on the stairs he came to were i was and he pulled his out and he looked at me and pushed it agested me on my face he was tryin to get me to give him and i was only 5 years old i kept pushing him away and all he did was look at me and smile and laugh i pushed again and ran at the time i didnt know right from wrong im 17 now and everyday of my life im scared to talk to people and i dont trust noone i cry all the time because at one point when i was 15 i end up living with my aunt and i had to see his face everyday he would watch me and keep his room door open to look at me i get so scared to the point that i locked myself in my room like i was a prisener .. and sometimes when i would take a shower i would go in the shower and take my clothes off becuase i was scared he was goin to come in sometimes when i would be in my room with the window open he look be outside lookin at me im scared .. and when my cousin was little he would use to kiss on her and put his fingure in her just nasty things a old man shouldnt be doing to little kids and my aunt know that he;s a molested because everytimes she goes to work she allways say to lock your door and dont trust him she knows but she doest do nothing about it i want him to know the pain we feel the hurt how tromitize i am i cant even look at a guy whos his race because i would see his face . i get so scared to the point that i would cry to come home i just dont know what to do .. i want him to go to jail but my cousin dosent want me to come forward beacuse she allready tryed to and theres a case she tryed to do but it never went anywere but if im the secont one to come foward even though it was a long time ago wouldnt i have a good chance at puttin him in jail please tell me what to do i dont want any other kids to get hurt,,,