> And they are better at life than I am
In my worldview, when you state that, you don't really believe that. If you did, you would do these things that you think make them better with no effort. If you drop wishful thinking, look at the situation, then it's clear that if you think they are better at life, then the actions they do are better. But if you really believed that you would choose to do them, effortlessly.
Now I know there's plenty of frameworks you can look at things through and plenty of rationalizations, I'm just presenting another one.
So whenever you think it would be better if you would be doing something right now which you are not doing, you have some cognitive dissonance. It's possible to debug it. Sometimes it can go pretty deep, but if you are honest with yourself then after you do the debugging, you should either arrive at the conclusion that it is not better after all, or be doing it.
We are able to hold tons of contradictory beliefs, but only if we don't bring them together to our attention. Then it's just impossible. Cheapest way to resolve these, which often appears automatically, is quick rationalization - creating a special case, "yes, but", "this is different" etc. But when you are honest with yourself and observe yourself, do some debugging, it's impossible to not be doing something you want to be doing (and vice versa).
For me, it often means not that now I want to do these tasks and I'm going at them, rather, I understand that e.g. I think there are more important things in life to me given the wider context and I'm perfectly fine not doing them.
I have not been doing anything I wouldn't want to be doing right now for years. I sometimes needed to question my very basic values and choices to debug it.
Remember that it requires dropping wishful thinking. Wanting sky to be green is just madness, only after you accept that reality is how it is you can find out what you want.
Anxiety can be debugged away.
(Yes, I know - brains, neurotransmitters, amygdala, this is just a random dude's framework, a tool)