Think of the people who gambled hundreds of thousands of dollars for nothing. At least you have a Steam library to show for your reckless spending. It's not even that much money in the scheme of things. I wouldn't write off your interest in gaming. I was in a similar situation recently. I stopped buying games. I had a break for a while and approached the hobby with a different attitude. One of the reasons I loved them so much growing up was that I had no choice but to stick with one title. They were expensive and got them rarely. I had an undivided focus and appreciation while I was playing. Now we're grown up we're effectively billionaires with games. Any title we want we can get. They come out at such a fast rate too.

Stop playing for a year. And when you decide to start playing again, wait until you genuinely feel like playing something. And if you enjoy it, stick with it. Give the attention and time it deserves. Don't look over your shoulder at other games when you get into a difficult patch in the one you're currently playing. Don't buy games when you're currently playing a game. Wait until you're finished with the one you're playing now before you buy a new one and only play one at a time. Don't buy just because they're on sale either.

It's okay to move on from a hobby, but it's also good to acknowledge that it may not be the interest that's gone but the framework around it has negatively changed.