OK. I am worried that I may have no piano skills.
I have been playing for approx. 8 years. I will be 14 in one week.
I can play the piano moderately well, but this is merely due to my experience. I have reason to assume that I am around the skill level of the average person who has been playing for about four years.
No piano skills would equate to playing / practising for hours a day, for years with no progress at all. That's my experience to date.
If you've made progress and can play pieces, then you know you can make progress ergo you have some level of skill.
Perhaps you just need something new, a new perspective / a new piece / a new teacher or something else to help you onto the next level and get past the rut?
Clearly not making progress sucks but it'd probably be better to ask the questions [in the form of playing the piano for someone] to get their assessment of how good your playing is and how you could improve it.
But don't go with the 'do I have skills?' question. The problem is teachers can only see / hear your playing, not your pain or frustration or the length of time to get it to that stage.
So to them it's just a case of "practise" - perhaps with some guidence - whether you're playing a piece badly and that's been the case for 12 years of prior practise, or whether you're playing badly because it's the first time you've ever played the piece. Their understanding of your playing, and what is good / bad about it and their words will be the same. Specifically, if you've had a teacher for years and they haven't said something before that helps, they never will.
So you've got to find a teacher that, when you do what they say, it improves your playing - don't expect a teacher to say "8 years? You should be playing better..." you'll have to live with your own frustration if progress has been slow, teachers'll have nothing to sate that. If there's an exception to that, then there's the teacher you want, but beware because plenty will say what we want to hear.
As for the video, it's relative. It's light years ahead of what I can do, but others would play it without much difficulty. If you can figure out why that is or more importantly what, if anything, we can do about it, let us all know

I'm struggling just watching it to try and figure out how she moves her hands / arms and so on to play the piece.