Might I suggest NOT sticking your face over a gas burner!  If you get a good dose you will most likely end up face first into a burning pyrex dish, possible catching your hair on fire or worse...and let me tell you that is no way to enter hyperspace.  It'd make for one hell of a bad experience. Please use DMT responsibly...we really don't need a new headline in the paper "Permanent Disfiguration from Smoking Drugs" "DMT, new dangerous drug burns user badly"
There are many good methods for smoking. Search the forum, there is a wealth of info on here! However, dish-on-stove is not one of them.  Look into a vaporizer, "the machine", a simple pipe filled with ash or leaf, a bong, or even rolled up with tobacco or mj...  
Drawing spice-scapes are a wonderful tool for remembering.  I frequently do this when I have a meaningful experience.  50mgs is nothing like 10-20...it can and will give one a serious spanking.  Please don't underestimate this sacrament.  It is a powerful tool.
Welcome to the forum! 
 The Spice extends life
 The Spice expands consciousness
 The Spice is vital for space travel
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Never underestimate the power of STUFF!
I am certifiably insane, as such all posts written by me should be regarded as utter nonsense or attempts to get attention.
I don't know SWIM and personally don't trust him at all.  If SWIM is posting, most likely I will not respond...as I said, I don't trust the guy.  YOU I trust, but never SWIM.