Welcome ChangeGonnaCome
I was a pot smoker for 20 years. I found next to no physical symptoms when I stopped but the psychological withdrawal was quite difficult.
I found just keeping busy, working through the apathy I felt was quite helpful.
There are support groups too. Marijuana Anonymous is one, although I have no personal knowledge of it.
Marijuana Anonymous World Services
there also appears to be an online resource here - again I've not used it...I gave up pot before the internet was invented
Welcome to MA Online!
D