teenage boys harassing me? 😭😭😰

Almost every boy that I've talked to last year to this year only wants sex from me then they leave me? But with other girls they'll stay? Like really? One boy asked to hook up with me, I said yes and he told his friends. He doesn't want anything to do with me but whenever I look "hot" then he'll stare at me 🙄 boys even beg on who can get with me. One boy asked me out on a date last Friday night and I went with him now he won't talk to me. I added another boy on snapchat and the first thing he asked me is if we'll ever trade again and I said no. It's so annoying. Even one boy tried to get with me over snapchat and I kept annoying and ignoring him now hw blocked me. I feel like when I go to school tomorrow then they'll gonna be staring at me and talking about me. 😭😭😭 I hate myself