Hi NoChildSupport,
"It's best I give this person up. Otherwise, I'm just going to make myself even more miserable"
Real kudos on recognizing that, on wanting to take that step!!!!

"Hopefully, I won't need them so much after a while. I think it's best if I walk alone"
And yes, it might take a while to let go of that need for them (even if it is a toxic need) but it's got to start somewhere, right? And it's got to start with walking away from them.
Just keep reminding yourself of why you need to walk away, and what you do need in your life/what you deserve. Which of course includes "healthy" relationships
And don't forget that this doesn't need to mean that you'll be on your own, from here you can maybe start to work on allowing in people more who can give you some ofsupport you need?? And don't forget, you've got us too!!!

Alison