TMI-Orgasm Troubles...

hi! This is my first time posting anything but I feel safe here haha. I’ve never experienced anything close to an orgasm before until I met my current S.O.. With him I feel like I get really close and I’m about to but it just doesn’t happen!! I try to enjoy and push it and I end up getting frustrated because I can’t push myself into coming. How do I stop this?? I get really close but never fully there, it’s like never ending edging :(