You have to be VERY
careful when practicing self suspension. I was fortunate enough to work for a number of years in a place that had several over head cranes I got to use. This was especially helpful for inverted (up side down) suspension. There are a number of manual and powered hoists available depending on how much you want to invest. Being primarily in construction I can easily justify a pricey piece of equipment since it could easily serve a practical use for me as well. Barring that the next best way to do perpendicular suspension is by affixing an overhead pulley, capable of supporting your weight, to your ceiling rafter. Then affix an equally stout large steel eye to a wall stud. Then thread the end of a durable mesh bag with 5 to 10lbs of ice to a premeasured (to your particular need) length of rope that will run up through the pulley and down to the attachment point for your self bondage, ie your wrist, rope or strap harness, etc. The get up on a chair, bench, milk create, or the like, pull the slack out of your rope, snugging it up as tight as possible, and kick/push the support out from under you. 10lbs of ice can keep my 200+ lbs frame aloft for 20 to 30 minutes. Your experience may vary depending on your weight, room temperature, and how much ice you use.
"I find it far more annoying when the universe makes me work for damnation. I prefer it just gave it to me and save me the effort"