Anxious/Preoccupied attachment - how can you help/heal/resolve this? Have you?

[Backinthedress]

Starting therapy next week, but in the meantime I'm desperately searching for things I can do to help myself before I push my beloved DP away so hard with my shitty behaviour that he doesn't come back. I've downloaded a bunch of meditations and am trying to take up some of the hobbies I dropped when we got together and I turned into the neurotic nightmare I seem to have become. Is there anything else practical I can do?

Have you been through this? Can you give me some hope that one day I might actually believe he really does love me and won't leave me?

You're afraid he doesn't love you, will leave you? So you've become over anxious, neurotic, dropped hobbies etc just to focus on him / you as a couple? Have I got that right??
Therapy might help I guess (can't get enthusiastic about it as it's not for me, but we're all different): In practical terms, I'd only say you're right to spend time focussing on other things, the things (and people?) you dropped. It's good for you, and also for him - I'd hate a gf who had no other focus.
But alongside that, given that you're going to spend time doing things away from him - put in effort towards making your time together good and interesting, rather than worrying about it turning bad.
If you can both do that, it won't turn bad.
Give him a hug and plan something fun for the weekend