Yeah I started to grown an increasingly toxic anxiety that disallowed me from enjoying anything because I'm "wasting time" with it so I decided to change my mindset as to how I played games in order to complete the backlog. I am playing a game to finish it, I am not interested in 100% it. I also decided that if I bought something I should try it, but it doesn't mean that if it is crap that I have to be stuck with it.
Some games I played for like 20 minutes and asked myself "is this worth investing my time into? Do I find the game redeemable enough to continue it?" If I didn't I just filtered it. Put it in Hidden. Out of sight out of mind.
I didn't allow myself to play older games I wanted to replay. Deus Ex is a known. I KNOW I enjoy Deus Ex. So if I have a choice between a game I bought 3 years ago at a whim that I'm uncertain about and Deus Ex well... I'll pick Deus Ex. The only way to get through that backlog is to just strongarm yourself into playing the games. Sheer discipline. You WILL play this game and that's final. You can't always wait around for the mood to strike you.
And obviously, do not buy new games.
But if you don't have the same anxiety that I do about a messy closet that you promised yourself you would clean but never did and every time you look at it you go "nah I can't be arsed" so it never happens; Then you might not need to do this. But me, I did. I had to just force it. Sit down, play the games, get through them. Enjoy them, but don't overenjoy them, you got too much stuff to go through to drag things out.
And if a game is like Crusader Kings 2 (which I own) then the simplest answer I found was to just ignore its existence until I got done with all the the other stuff that isn't as much of a time investment. I still haven't had the free time to really invest into CK2 to learn it and enjoy it so it is technically still backlogged for me until I can find the proper free time for it.
If getting through the backlog is a priority for you then you just gotta prioritize the games and ask yourself when playing them "do I really have to do EVERYTHING?"
And of course take a break every once in a while to just chill in front of a good ol goodie.
I actually have a similar anxiety, or at least had. My backlog is quite large, as I've said, and it's spread over two platforms. I've accumulated a lot of games in a way which seems cheap (8 bucks for 10 games? Why not), but was in reality a waste of money nonetheless because most of those games never ever got their turn. So I was looking at 1000+ titles accumulated in what is basically almost 20 years, games of which realistically I was interested in like 200 tops. Which is still an insanely large number if you consider them as a time investment. It's thousands upon thousands of hours.
Sure, I know a lot of people who have no issues spending 1000+ hours in stuff like DOTA, but I simply don't have that time on my hands, not anymore. Not with a job, stuff around the apartment, other hobbies - I read a lot too, for instance, but I also like cycling, socializing, painting Warhammer etc. All of those are time investments on their own, not to mention the financial cost.
I already have a so called pile of shame in Warhammer, which is a fairly normal thing.
I apparently have a gaming pile of shame too.
No need to make the pile larger.
Once I started looking at these things primarily from the time investment perspective, I started spending less and less money on it and actually began to clear my backlog.
If the game doesn't grab me in the first 40 minutes, I usually abandon it, unless I have a really, really, really good recommendation from a trusted source, in which case I tend to push on and give it a chance.
If it's a sort of endless title (which I enjoy), I basically force myself to avoid it for the time being. It's a low priority game. Sweet, forbidden fruit.
Replays aren't much of an issue because I tend to have a vivid memory of games, and basically replay them only after a lot of time has passed, but yeah, they can be a time sink too.
Then again, what really helped me was when I realized is that all of this, the whole anxiety issue is just something I am giving myself.
I don't have to complete all of the games in the same manner that I won't be able to see everything I would like to see and experience in life. You just gotta miss out on some stuff, that's life.
I mean it doesn't really bother me that I won't see Australian wilderness most likely, and definitely won't see the Antarctica (which I would like to nonetheless), so if those far-fetched things don't bother me, why should I feel so bad about not devoting some time in my life and sitting in front of a computer to play some game that I might or might not enjoy.
It's kinda absurd.
So I just stopped giving a shit. And I stopped wasting money for the most part.
I have "cleaned room" just to make it easier for myself in the future, but in general, I just don't worry about that stuff much anymore. Not enough to get anxious.
But I can understand the sentiment.