Spend money on quality training taught by people who have the credentials and experience to know what they're doing. You have to have someone show you the proper way, watch you and correct you until you can demonstrate you understand and can repeat the procedure, and then watch you some more while you practice 50 or 100 times to start the process of ingraining proper technique into your subconscious. Sure, it will cost money, and take time. Then do them 50 times. After two weeks, proper techniques should be embedded in you so that no conscious thought is required to draw the gun and acquire a target without committing safety violations.
Guns are like power tools.
Then they bite, and bite hard. I feel for Bob, as I'm sure he's both embarrassed and in some pain. Every Bob who shoots himself accidentally paints all of us with the same brush.