Welcome to the Nexus!

There is no physical tolerance build up with DMT but what does happen as a common phenomenon is that "hyperspace seems shut", so people have dark/weird/negative experiences and at times even get straight up direct messages sayign "do not come back here".  Its so common we actually put that in the FAQ, and suggest people take a long break when that happens.

As Art said, each one has their own level of usage and it also changes with the time in one's life.  I think the most important is that you try to take care of integration and dont stop dedicating energy to your daily life.. Exercise, eat well, try to be good to others and all of that..  Do check the Health and Safety section on that.

Regarding the nursery, as you see to understand now, its a way we found to at the same time prevent badly intended people or those with bad attitude, but also introduction essays help very much that we get to know each other in a more intimate way, sort of like an initiation ritual.

Good luck with your path. Indeed dont discuss synthesis that involve watched chems or dangerous processes, but feel free to discuss theoretical chemistry and simple safe synthesis (like for example development of harmaline/mine to THH reduction using zinc, if thats possible, or n-oxide to dmt reduction using zinc, discussing the validity of LSA-LSH claims, etc).

Keep posting and im sure very soon you'll be a full member here.. See ya around!