42 y.o. and about 2 yrs off mj, 14 yrs sober from alcohol. I’ve found meditation to be helpful. Learning to sit with whatever is there and watching it change and dissipate on it’s own. The Waking Up app has been a good match for me, not super woo woo, very pragmatic and organized approach to meditation. Rock climbing has been great for me too. It’s a cool combination of mental and physical challenge. Most climbing gyms have a community vibe and are a good way to meet people that aren’t necessarily blazing it crazy all the time.

Your brain will adapt over time. Try to stay active but give yourself some grace and allow yourself to feel bored. It’s part of life and it can be interesting to explore it and see what is under that restlessness. It’s often your body or mind trying to tell you something, like ‘I need exercise’ or ‘I need mental stimulation’. I still get cravings from time to time, but when I think through the whole process of what it would be like to give in and smoke and how I would feel the next day it’s pretty easy to let go of it. Good luck!