Congrats on your CCW! Seems like quite an accomplishment in NYS, considering all of the bureaucratic hurdles in your way.
I carry a G19 as my EDC piece, sometimes swap it out for a G26, or a J-frame. I really like that 43X. If I'm sober, I'm armed; I'll lock it up before I so much as sniff a cork.
Consider getting an Airsoft gun that fits your 43X holsters. When I was new to CCW, I'd do quick-draw and other drills at home with a pellet gun. Carrying a pistol felt awkward at first, and I was very self-conscious until I got used to it.
Any gun I might get in a gunfight with has night sights and a light (or laser). I like the Streamlight TLR6 and TLR7. There's data that LE shootings are more likely to happen at night and I think the same dynamic holds for DGUs. Get a light and take a low-light class.
Get a good belt. Sounds like you've done that, anyway. I'm wearing a Kore Essentials right now but also have a Nexbelt in the rotation. Ditch any non-reinforced, department-store belt you might have. 5.11, Galco, Nexbelt, Milt Sparks, Mitch Rosen, Gould & Goodrich, Mean Gene, Magpul, etc. Either a double layer of thick leather, or reinforced with polymer. Your LGS should have at least a few options. On that note, it's worth spending a few bucks to support your LGS instead of Jeff Bezos.
Your future wardrobe decisions will be made with CCW in mind. We men have it easier because it's fashionable to wear loose, baggy clothing. Avoid tacticool pants and khaki "shoot-me-first" vests. Likewise, avoid wearing your opinion on your sleeve. Grunt Style has some really moto stuff but the idea is to not draw attention to yourself, and not provoke anyone who does notice you. Plain or local-sports-team t-shirts and hoodies, untucked plaid or Hawaiian shirts, etc., are great and will hide a full-size Beretta 96 in an OWB holster, in the AZ heat.
Insurance. USCCA and the NRA, and others, have liability insurance. Talk to your agent, and get a supplemental plan. Include that information in your will for your NOK in the event you've lost the gunfight and the BG is still going after your estate for the fight you put up before losing.
Put a pistol lock box in your car. Never leave your pistol in it overnight. You can security-cable it to hide under your seat, yet remove it at night if you're traveling and want a nightcap in the hotel bar.
If you haven't joined an activist group like the NRA, GOA, JPFO, Pink Pistols, whatever, consider doing so. The legal decisions you benefit from cost money, and future lawsuits won't happen unless they get funded.