Yes, I have made a number of my own holsters, and as we speak have an ankle holster on which has been an almost constant companion for quite awhile.
I use rivets at many stress points as I have no desire to have a failure and then need to redo.
I find that I may make a couple before I really like the result. I use hand stitching, with a hand awl that has the thread in the small bobbin.
I usually use a lacing punch to make the holes because it is hard and dangerous to try and push the needle through 2 or more layers of leather thick enough to make good holsters.
I usually double and triple stitch in stress areas.
Crusty Deary Ol'Coot