I started my first reef tank when I was 16. I got my first job and used some of my money to buy a used tank and the best equipment I could afford, which honestly wasn’t much! I build the sump myself and used epoxy to build baffles for the sump. Basically it was very DIY but I had the spare time to build. The tank had its ups but it was a lot of downs too because I was still learning and making due with what I had. I lost fish, corals, electrocuted myself with bad wiring choices but I learned from all those mistakes! When I went off to college my parents were in charge of the tank and it went downhill fast. I came home to find the tank covered in green hair algae, all the corals died and it was a disaster. I had to make a choice and I broke down the tank and sold back the fish I had. I was out of the hobby but still had a passion for it. A few years later I started up a new tank and I’ve had 4 tanks since that first one. Sorry your tang didn’t make it. I know it’s really tough to see something you’re caring for pass away. My best advice is to be kind on yourself, sometimes crappy stuff happens out of your control. And if you need to take a break that’s OK. You’ll figure out what’s best for you.
Good luck!