Well, let me apologize for us all for the way this dude treated you. More of the gun community would welcome you with open arms than would discourage you. This guy's whole focus seemed to be on sales, not training. Most all gun dealers I know of encourage new shooters, and have at least a list of trainers to offer you if you're inexperienced with guns. Most decent ranges I know of also have range officers while firing is going on, and have a cadre of instructors to offer new shooters.
But since you have no experience, find a range that does have instructors available. Contact one and ask that they bring some of their guns along when you get your training. Every instructor I know has a large number of guns, and are more than happy to show them off. A gun that meets the needs of one person may well be the biggest piece of crap to the next shooter. For you to become comfortable with a gun, it has to feel right in your hand. If you're not comfortable with it, you ain't gonna like the experience at all, and your efforts to learn to shoot will be in vain.
If your interest is only target shooting, a .22 may well be a great choice. If you want a gun for self defense, or home defense is your aim, a minimum of a 9 mm is likely the best choice. For a new shooter, a revolver tends to be a better choice, it's simple to operate, and it's either ready to shoot or it ain't.
The best of luck in learning about shooting, and owning a gun. Knowing how to operate one safely is the first thing to learn, and always practice. Getting the skills to shoot accurately consistently comes with practice.