Tincture will raise your tolerance quickly, so be advised that if your experiments are too close together the effects will be reduced.

Heating will allow some of the ethanol to evaporate, and concentrate the product. You can also just leave it in an uncovered jar or bowl, out of direct light and it will evaporate, but takes a while.

You can always just take twice or three times as much as your original dose to get more of the good stuff.