Can yall bully me into letting him go?

I’ve been obsessing over the same guy for over five years, and he doesn’t give a single shit about me. I keep messaging him, even after he leaves me on read and delivered for days, He’s already called me weird and obsessive many times hes rejected me already but i wont let go. I need to humble myself and face the embarrassment to the point where I’m too ashamed to message him anymore. I need to raise my self-awareness and respect for myself. Please, don’t hold back I really need this.