some tips:

find some hash/honey oil: this honey oil I have makes me laugh again like I did when I started smoking

take a break: take about 5-7 days off from smoking if you can and see what happends

enviorment: where are you when you're usually high? I prefer either at home by myself or with a group of friends that I know are funny. Fast food lines in the inside can be really funny when you're all stoned.

i dunno how much more there is but i'll leave it at this...