The fact you don't see them doesn't mean they're not there.
Do you have recordings you made a few months ago? That you can compare with recordings of the same pieces played now?
I'm not saying you
must have improved in that time, but I find it hard to believe you haven't - assuming you really have been playing every day. Even 10 minutes a day is enough to produce technical improvement.
Personally I've never known anything like this, although I see this kind of post quite a lot.
I've always played for pure enjoyment, learned the tunes I wanted to learn as I went. I never had the sense that I "should" be at any particular skill level at any point. Obviously I often felt technically challenged by a tune, and some pieces were always well beyond my skill level (and still are, 55 years after I began playing). But either I sat down and worked on the tune until I had it, or simply rejected it as not being interesting enough to devote that much time to it.
IOW, I quite often failed to complete learning a tune I started on. I'd abandon it and move on. That was fine because no one was paying me to perform it, and I'd (probably) learned some useful new stuff in the process. There was (and is) always too much music out there that's within my grasp (with minimal extra effort if any) to worry about music that's impossible.
What I never did - except very occasionally, more for warm-up than anything else - was
practice scales. I never worked on technique for its own sake. I never played
exercises. Still don't. For all those 55 years, I've been just as good as I needed and wanted to be at the time - or nearly, which only meant a little more work on whatever tune it was, to get it "good enough". Why would you play exercises when you can play music? Why treat music as "work", as a "chore"?
It helped that I was playing in bands (often two or three), right from 9 months after first picking up a guitar. So I was enjoying myself gigging and playing with friends, while I worked on fingerstyle pieces for enjoyment in my spare time (which would only rarely be for performance).
So I was in an environment which
proved to me that I was good enough. I think this is a critical point. If it's just you alone in your room, I can imagine you get used to seeing all these amazing players on youtube or wherever, and feeling hopelessly inadequate.
My role in the band(s) was never that challenging (not as complicated technically as what I was learning in private), and we were never boo-ed off stage, so I knew I was "OK". In fact, more than OK. Audiences clapped, even cheered sometimes! What more could one want! (Being paid for it? Yes, that happened too, sometimes... )
I realise I was very lucky in that respect. As a teenager, my closest friends were all amateur musicians, and when they needed a new member I was the nearest person. I was nowhere near "good", but I was "good enough". (They weren't great either, just a little better than me.)
But even with the gigging - and later the seriously paid gigs - there was still no pressure involved. No sense that I needed to be "better".
I realise this is a long personal rant that might not seem relevant. But it comes down to
attitude. I guess you're learning guitar for recreation, for your own pleasure - not because you're being paid as a performer, and need to reach a certain standard or you'll be losing work!
Assuming you're doing it for enjoyment, then, it's a no-brainer that if you're not enjoying it then you're doing something wrong. Either you should just stop playing (until you want to start again), or you find something you enjoy playing. Then play that until it gets boring again. Then stop again. And so on. IOW, just stop thinking about where you "should" be (according to what criteria? what rules?).
Stop comparing yourself to other people - however far you think they got in 7 years. There will always be people better than you. Try comparing yourself to those millions worse than you for change! Hell, there are even some people in world who can't play guitar at all!! Have some pity on them while feeling a little smug ...
Even comparing yourself to "yourself a while ago" is fraught with complication, because memory plays tricks, and your improvement - while always progressing upwards (inevitably) can get out of balance. Your understanding of music (and your ear) can advance ahead of your instrumental technique, which can make you feel like you're
getting worse. You're obviously not: your technical advance is just not keeping pace with your advance elsewhere. The reverse of that is the feeling that you don't know what to learn next; you have all this technical skill and don't know what to do with it. That means your understanding has not kept pace with your technique.
Pick a tune you want to learn. Sit down and learn it. If it takes so long you get fed up with it - stop. Find a simpler tune.