I smoke DMT once in a blue moon nowdays, I enjoy psychedelics, but I like to remain firmly in this reality, I don't do ketamine (tried it, got all I think I can from it, moved on) at all anymore either. DMT is wonderous, but shouldn't be a regular thing.
I agree, if you've ended up with a crystalline substance from a freeze precip, it's DMT. I too, have wasted good spice in the past through failing to vapourize it correctly, the first effective way I found was a rudimentary crackpipe, although you should see the vapourizing bong top I showed you though, if I do an extraction nowdays, that is what I will use. However, in the short term, go and find: A steel pipe, wire wool, a good dense gause and a flamethrower lighter, one of those wind proof butane jobbies.
Firmly pack a wad of wire wool (the wagged wascle wan

) fairly deep into the pipe, fix the gause on this and place upon it, 50mg of finest spice, then on top of that, pack another generous wad of wire wool.
As a chap whose had experience with vapourizing in the past, you'll now in be familier territory, heat the pipe and the wool until the DMT vapourized and hit it.
It takes skill, I nearly wasted pretty much all of my first extracted gram getting it right. The failed hit are frankly, unpleasant, the temptation is to keep trying, all the while getting a metallic taste in your lungs, instant "I shouldn't have done this" feelings and then body load auditory hallucinations, nasty, almost deliriant, visual distortions, then, after 15 minutes, a light euphoria and the urge to do it again!
This nearly put me off. After a failed hit, you much put down the pipe, you will not succeed that evening. If you do, you won't get a breakthrough anyway. Wait a few days.
When I managed my first breakthrough dose...well...I'm not going to bother to try and describe it. I love my psychedelics. This is unlike any "drug" I've ever tried. I'll leave it at that. People sound like twats trying to describe it.