Worrying about whether you’re focusing on the right things or not can either help you or stall you.
Can be it useful to have some idea or hypothesis that what you’re doing is going to lead to something meaningful?
Sure.
But at some point, there’s going to be a tradeoff where you’re much better off doing something than debating whether or not to do it.
It’s not deliberation that will give you lessons to learn and the chance to make something, it’s actually doing the thing.
Worrying is never going to get one anyplace 'good'.
But that doesn't discount that life is all about focusing on the right thing lol. This is probably what makes this situation so difficult.