I’m really confused ,sexual assault?

I don’t have anyone to talk to... so if you can help me out..thanks /: I’m 17 and I hung out with my guyfriend he’s 21.. anyways we were chilling and we went to go eat.. after that (btw it was like 8:30pm) we went to chill at the park eating our food then he tries kissing me.. but I pushed him away after he tried sliding his hand down my pants then he said “you like it rough huh?” And went back at me so I slapped him that time.. and he pulled my hair and got reallyyy rough.. I kept saying no but I couldn’t do anything no more and he kept telling me things when doing things.. but since I stopped fighting and got in the car with him...soo is it fine ../: idk I cried when I got home because I’m sooo confused .. (btw I’m a rape victim that’s why I gave up since I was in shock and felt like I caused it ) ...please help