The boredom thing will hang around for a while. You've gone from a life that involves doing something illegal, something you don't want anyone to know about, there's secrecy, the high, the coming down...all that takes up 99% of our minds and energy.
I agree with Suki - Volunteering is a great way to get out of yourself. I didn't listen to everyone here about that, until a couple of years ago when I found myself with too much time on my hands. I got a volunteer job at a senior center, working the lunch we served. Had a blast, met a lot of great people.
Got a job through contacts I knew there. Now, I have so much to do, I can't remember what bored feels like, but I really do miss my volunteer job.
Hugs and prayers,
Amy