Absolutely should quit smoking it, in many ways its harmful to you and your candida. Not only do drugs in general turn your body more acidic, weed is bad for you in many more ways than people seem to think. TRUST ME I used to smoke it for about 10 years. Quite possibly the reason why I now have such a bad candida problem to begin with.
I'd say the largest reason to quit smoking it is because when growing in the ground it absorbs better than most plants, hence the high amounts of THC. Which means it will also absorb things like mercury and other such heavy metals and toxins from the ground which are constantly found in it.
There have been several studies involving marijuana and heavy metal toxicities. And a lot of other studies state that candida and heavy metals coincide with eachother. Some might even say mercury and others are direct causes of candida.