Awesome mate.
It sounds like you've figured out a lot of stuff about yourself and are working quickly to rectify- that's very powerful as you take control - not easy and there will be setbacks, but this is lasting change in mindset and behaviour, not routines and band-aids.
Meditation is definitely something I've found to be beneficial generally- takes the heat out, chills you down.
The meetups are socialising with stabilisers-I find they can be very hit and miss.
Had a few girls off them - the gossip spreads quick though.
Also seen a few of the lads from here at one of them which was amusing!
It's all momentum, have fun.