I cut the thumb off of a size large rubber dish glove and there is no way I can get this thing over the tip of my penis. How the heck did you do this?
First, turn it inside out, then roll it up all the way like a condom, put your totally flaccid penis head to the “condom”, press it against it and try to roll it so it covers the very tip of your penis head. Once you have managed to do this, grab the penis tip (that is now slightly covered by the dish-glove-thumb) and continue to roll it down until you have covered your penis head.
Believe me, you can do it! The penis head can get extremely small when you compress it in the flaccid state. Just practice some more. I might create a “how to” in the members picture forum but that is by no means a promise.