Get some snap caps and practice loading and dry fire. The A-Zoom brand have a rubberized primer that is supposed to be better for the firing pin.
Amazon product ASIN B0002IKANWView: https://smile.amazon.com/dp/B0002IKANW/ref=cm_sw_r_sms_api_i_3mUNFb2GFHXHV?psc=1
the plastic ones are better for simulating double feed malfunction drills (IMO)
Amazon product ASIN B01KNL9AX8View: https://smile.amazon.com/dp/B01KNL9AX8/ref=cm_sw_r_sms_api_i_DoUNFb85EQMW2
Practice daily, aiming at a light switch or put a 1” square piece of blue painters tape on the wall. Once you buy your carry holster, practice drawing from concealment and getting your sights on target (light switch or tape). Add in magazine changes and reloading with retention.
Find a decent weapon mounted light (WML) and get a compatible holster for that too. You’ll want to see if you like carrying the WML or maybe not. Either way, if you choose to store your gun loaded for home defense, you should have the WML mounted and it stored in a holster in your gun safe.
Buy a decent gun safe that is quick access (search for threads in NES about pistol safes).
Get some training. Find a competent instructor and get some pointers to correct bad habits from forming. Start to train on different weapon platforms so you can pick up any modern-day handgun and run it like a boss.
Buy some 5.11s, sh*t in multicam, assortment of morale patches, cool guy watch, EDC knife and go freakin’ nutz with the tacticool lifestyle. If you’re really committed, grow out your operator beard and get some ink to complete the look (just Google Corey and Erika — she was a smoke show, but Corey or James Yeager is what to aspire for here). Start to watch all the “Gun Guy” YouTube channels — you’ll have a lot of catching up to do, but am with your Glock in one hand will quickly become your daily routine. Hate on “Noodle Boy” and crap on others on NES who don’t share your POV and you’ll be well indoctrinated to the culture! LOL
Oh yeah, congrats on the new range toy!