^ Yep, I don't think there are any psychedelics that do not share some tolerance. Now those more similar in their effects will likely have more tolerance between each other, and certain psychedelics will create more or less tolerance to all psychedelics than others do.
I'd imagine you'd notice the most cross-tolerance with other tryptamines, but the cross tolerance between phenethylamines and tryptamines is still quite substantial.
Personally with all psychedelics I've tried, with the exception being DMT, a week should be the minimum wait between doses unless it's a special occasion (e.g. multiple day festival, though be aware you'll have to dose quite a lot higher after the first day), two weeks for pretty much full baseline (though this isn't always enough), and a month or more if you're consistently and regularly dosing psychedelics, since I find while 1-2 weeks is enough in the short run, after you start dosing that often your tolerance shoots up.
You should be able to avoid tolerance if you stick to a similar schedule