Where to go from here?

Hello, I'll do a small introduction first...

It's coming up three years since my schizophrenia diagnosis, and things are going ok. I'm on stable medication, feeling good, but seem to be stuck in a little trap. I do well for a few days, and then spontaneously drink a bit and waste money, and it's due to boredom and restlessness on my behalf. Since being medicated and post psychosis, I have lost my creative outlets, I'm worried about meditating and stuff like that becasue of my delusions. I barely have friends I can hang out with, I'm always just spending my days listening to music, drinking too much coffee and waiting for my partner to get home. I seem to be a little scared of going for walks or bike rides too far from home and by myself too. My other main problem right now (since my psychosis) is that I overshare and over explain myself on social media... I'm fine and confident when I make the posts but after a short while I regret it, take it down, and get embarrassed by what I've shared and worry about who saw it.

My aim here was to ask what kind of self guided therapies or mindfullness exercises I could do to try and help my focus and influence me to a) stop giving into boredom with alcohol and coffee, and b)stop oversharing on social media...

Thankyou if you took the time to read this.