Alot! I just started getting into handguns this year with the purchase of my first ever handgun, a beretta 96a1. At any rate ive been reading and watching videos of others who are instructors or just very gun savy, i watch and take notes of things id like to try when i get to the range. This has been excellent being as im training myself and dont have a mentor per say.. But my shooting has gotten unbelivably better in say the past 6 months. So here are the things i was doing wrong and have overcome with the help of youtube and forums like this one! Props to TFL for being a great source of FIRST HAND knowledge. Anyway i started with my grip, the thumbs forward was comfy but i was still wondering.. do i really need to do this 60/40 support hand doing the 60. I found for me using only a firm handshake grip with both hands does best for me at the moment. Next was trigger control and it was tough but after dry fire exercise i looked up i wss breaking the trigger easy without moving my sights. After that i corrected my flinch/ anticipating recoil with only watching one video that explained very well how to break the trigger with a clear mind, not thinking about EXACTLY when to break the trigger, but let it break when it wants to just keep your focus on the front sight and keep even pressure going while pulling the trigger. But hey! Im getting better and learning not only to shoot but all the handgun lingo im unfamiliar with, coming from not being able to hit a 12x12" at 10 feet to now hand size groups at 50 feet. So yes reading helped me a ton! P.s. most of my posts are from a cell phone and lack paragraphs.. sorry! Stay safe everyone!