Stop trying to manifest her, the most loving thing you can do right now for her and for you is to let her go. And I mean let her go, don’t look her up on social media, don’t initiate texts. Those feelings that you describe suck but they serve a purpose, you don’t have to wallow in them but don’t try to run away from them either. Also the emotions are not wrong but don’t give them so much importance, it’s all just emotion and your brain and body getting used to not having it’s cocaine anymore.

Trust me I’ve been there before, like a few months ago I was in a similar situation. It really sucks ass, but the best thing you can do now is to find a purpose, work on yourself, and most importantly love yourself. This is the greatest opportunity that you’ve been given. You can either numb/ignore your feelings and continue being as you are or transform yourself into a better person. This is your best chance to rewire your brain. Just imagine/visualize being in a situation where you have a bunch of attractive woman blowing up your phone eager to be with you and for your attention. Like really imagine that abundance of options and the feelings it generates. Now ask yourself, what kind of person do I have to BE to attract the circumstances and GF of my dreams?