Getting out of the military is inevitable -- what are you working on now to help you succeed when you do?

Had I known then what I know now, I would have done some things differently. Here are few things I ran into.
1. Save, save, save. I only had $13K when I got out and that didn't last long. Basically it was just enough to get established and not much beyond that.
2. Education. I would have done more college classes when I was in. So after I got out, I had to work a bit harder to get my degree.
3. Civilianize myself. The civilian world doesn't work at all like the military. I would have started sooner at adjusting my speech to be more in line with how civilians talk.
4. No one cares. No one cares that you were in the military. No one cares how many troops you led. No one cares how many times you deployed. Employers only care about what value you can provide them in the here and now.
5. Manage your expectations. If you were an E-5 there is a high probability that you will not walk into a 6 or 7 figure executive job right away. Like I said in # 4 no one cares. So you have to be willing to take an entry level position and work your way up. You might have been really good at being in the military, but that doesn't mean you can be a good civilian employee.

I can go on about this topic, but I don't want to make a wall of text this morning lol.

If I had to offer advice to my younger self, it would have been more cultural enrichment activities, later in life I ended up doing the art thingie and I'm enjoying it quite a bit and I've found that there is a market for well crafted 3d assets (today), but I think that anything to give your future self options is something that needs to be looked into.

<Edit>
If you are looking to get into game development I am going to tell you this point blank. Go to school for an education in programming and avoid (or at least vet the hell out of) any game dev school , make sure you pick up your C's, Lua, and anything in the networking side of things will only help, and take some formal or informal instruction on cinematography, photography, and I would suggest some traditional art classes where you learn the fundamentals such as anatomy and color theory. As for learning your 3d software and game engines...meh you can do that on youtube, just set up an art station account to use as a portfolio page when you are ready.

Research schools for life after service.

There are many reputable schools that want to enroll and educate veterans, but there are also some predatory schools that offer substandard education for GI Bill money. Community colleges can be good for those looking at vocational training after service. Public and non-profit private universities (ranked in US News & World Report, Bloomberg Businessweek, Forbes, etc.) are good for those looking at traditional STEM or liberal arts careers.