I say stop! Sounds like you have done well for some time now. I know this will sound all "mother like" cause I am one. You have tons of time to smoke pot. Think about the future. We all know pot is addiciting and cost to much

I say, stay stopped. And be proud of it!

I think it is wonderfull when we learn something from are mistakes, once you are a bit older and maybe on your own, if you so choose, then start again. Until then keep making yourself & your parents proud, you have nothing to loose by keeping off weed, nothing at all!

Good luck, whatever you do!