I have to echo some of the advice given on here. Having recently been turfed by the girlfriend of three years I can empathise with the OP's plight.
Only advice I can give is simply focus on yourself. Do whatever you need to do to reconcile these hurt feelings and eventually you'll get to a place where you're comfortable with who you are as a person, and that involves not being defined by someone else. You'll get there eventually, and when you do you'll realise that you don't need anyone else to make you happy or content. From there anything can happen. You might find a new bird, you might not, but then it wont matter because you're comfortable with yourself and your current situation. Finding someone is a bonus, getting to a stage where you're happy within yourself is the first step.
Echoing other posters, I urge you to refrain from contacting her. Was in the same spot as you months ago. I had the Christmas holidays, New Years, her birthday and valentines day as ecuses to contact her. As it was she copped the silent treatment from me. Not because I didn't want to get in touch with her, I mean I did and I still miss her and think about her on a hourly basis, but I knew for my own well being and sanity that I couldn't do it. I don't think you need to do anything so drastic as deleting numbers, blocking her etc. In fact I think you'll exhibit greater control and agency over the situation by not deleting numbers, but making the choice not to contact her. Then it's your decision to make. Over the long run this will mean you've showed the strength of character to respect yourself by not falling to temptation.
I think deep down you know this, but you'll be alright, eventually. You're probably feeling a bit battered and bruised emotionally. We've all been there. You'll get through this!
