Hi spawnofyorkshire.
Not sure how much I can help. Like many, I suffer from depression. I went through my ex (when I lived at home in Belfast) ending it with me and moving on with her life. Block her at the very least mate. This is YOUR LIFE, not hers. That will pass. Trust me, it does.
Talk. Keep talking. If you can’t talk on the dark days, talk when you feel like you can.
I don’t believe going to my GP and being on medication ever helped. That’s from 10 years of going and getting nothing.
Do what truly makes you happy. What is it that gives you that little fuzzy feeling? Everyone has something that does that to them.
If you need a chat, get in touch.