Being worth the wait?

I feel like the phrase is almost nonexistent now lol but after giving myself up to a guy 8 years older than me who just used me for his own fantasies has made me have some second thoughts about having sex. I got really attached to him and he was my first so the hurt was sooo bad :/ I don't wanna feel like this again, I want to be sure the person I give myself to truly loves me first, but waiting until marriage seems like a loooong time and I'm not gonna lie, sex is amazing!! So should I just be more discerning? I'm 16 btw and just trying to be smarter about things. Thanks :)