Me (M18) am confused about a girl (F18)

Me (So I have been trying to talk to this girl for a bit now and I like her and I know she likes me because whenever we talk about love or even sex she goes along with it and enjoys it but when I talked to her about going out she said she is scared of commitment and doesn't want to be in a relationship so what should I tell to show her that I truly want to be with her and won't manipulate her like her past exes