Glock Owners, Please Advise a First Time Buyer!

Im interested in a hand gun, and I’m pretty positive that I want a Glock 17. Im not sure which generation to go for though. Or what the best ammo would be. Help a newbie out :-)

Edit:

Im 30F 5’6 about 150 lbs. i have bigger hands than ur average girly (think size L latex glove)

Im seeking a firearm mainly for home defense, range time, and eventually concealed carry for backpacking trips.

Update:

I went into the range with the idea of renting the 19 and the 45, but ended up renting the 19 and the 43x(which I hadn’t considered but someone in the thread recommended)…and the 43x felt perf and I actually like that it’s subcompact. So thank you to whomever brought that up and everyone else for the suggestions!