Your inner critic can be shaped to what you need it to be. First, I'd change, I'm not good enough, to I want to get better at X. Seems like semantics, but perspective is everything. When possible, frame things in the positive (hit the ball, rather than DON'T miss).
When you do this, I think it will be easier to convince your inner critic that you need rest (not just sleep but time to pause, other activities for your brain/body, etc.). Whatever balance is for you, you can train your inner critic to prioritize that over a cruel checklist.
Also, I think it's unhelpful to describe yourself as incompetent relative to everyone else or not. If you are behind some others, there are reasons (most probably related to experience), and if you understand them, I think you should be at peace with where you are. That doesn't mean stop improving. It just means, I am here; to get to Z, I must do X and Y.
Basically, zoom in and out of your situation enough to understand it, and do the best thing for you. It could be helpful to frame it as though you are setting up the parameters for a friend rather than yourself. A lot of people aren't as kind to themselves as they are to people they care about. Care about you; be kind to you.
I think you’re forgetting natural talent (it is their Acceleration to your velocity), commitment, energy, lack of distractions, luck and so many other things you can’t account for. Feeling left behind is inevitable even if you’re on the top of one field - there are going to be others you’re not at the forefront of. The billionaires pay a ton of money to play tennis/golf for example - ask them how they feel when they watch pga/open events.
The crux of the answer is making peace with getting left behind and constructing meaning where you’re. Or use that as motivation. In a connected world the Jones are way too many in number to match and exceed.
I think we as humans need to and will find the ability to have a thick skin for this. We have had to historically build resistance to various distractions - this is just the latest where all the celebs are very interested in making you feel like they are regular humans as well and what they do is very much achievable for everyone: in short it isn’t and we just need to get with the program.
When you do this, I think it will be easier to convince your inner critic that you need rest (not just sleep but time to pause, other activities for your brain/body, etc.). Whatever balance is for you, you can train your inner critic to prioritize that over a cruel checklist.
Also, I think it's unhelpful to describe yourself as incompetent relative to everyone else or not. If you are behind some others, there are reasons (most probably related to experience), and if you understand them, I think you should be at peace with where you are. That doesn't mean stop improving. It just means, I am here; to get to Z, I must do X and Y.
Basically, zoom in and out of your situation enough to understand it, and do the best thing for you. It could be helpful to frame it as though you are setting up the parameters for a friend rather than yourself. A lot of people aren't as kind to themselves as they are to people they care about. Care about you; be kind to you.