The video is well done. As to making holsters, well I started leather working because I thought I could make my own holster for what I was going to pay for one. I was right. I have made around 10 holsters so far. I am only in it for the hobby. It is addicting though. Oh, and once people know you can make holsters they will not leave you alone. Even holsters you consider ugly are looked at with awe.
After you cut the leather the first time to make a holster it really gets easier. That first time caused quite a bit of nervous thoughts about wasting leather. Now I look at it as a learning experience.
The best advice I got was to get the book "How to Make Holsters" by Al Stohlman. I have also used Jim Simmons' Cowboy Holster Tutorial. Both are great references.