Re: Just bought my first handgun for multiple purposes.
Welcome and enjoy your new G22! It is a great gun! Sounds like you have a lot to learn, but it also sounds like you are willing to learn. You can learn a lot of valuable information from this forum.
One thing I'll add. You mentioned the possibility of getting a 9mm conversion barrel to use at the range. While there is nothing wrong with that, just make sure you get enough practice shooting .40 ammo first. God forbid you have to use the gun to protect yourself, but you won't want any surprises when you pull the trigger. 9mm and .40 are much different when shooting.