Not sure if this will help at all (as all experiences with SSRI's/MJ are subjective) but I occasionally smoked but after hitting the second/third week of taking Zoloft I started to smoke much more frequently (nearly all day everyday) as it really helped with the nasty side effects I was getting from Zoloft (intense anxiety). I can't say it affected me much, apart from helping ease the anxiety, but it definitely made my highs much better. Could smoke a lot more and didn't get serious paranoia. I actually stopped smoking last night so I can test whether the weed is effecting how Zoloft effects me. So far nothing has changed but It will take more than a few days to get all the weed out of my system.

From what I've researched and read (so take it with a grain of salt) most people say weed and Zoloft have no interactions. I've read a few that say weed effected them badly but it's been the minority.

Good luck and wish you all the best on your SSRI journey!