So far, I've got around 100 problems rated 1400+ accepted.

Most of the time, I think hard but fail to come up with a clear solution idea, so I end up reading the editorial or comments and then implementing the solution described there.

Still, I feel like I'm basically unable to solve 1400-level problems on my own.

I get lost in the analysis, fail to conceptualize the problem, miss key observations, and so on.

Given that, is "solve more problems" still valid advice?

I'm already comfortable with implementation and familiar with basic techniques and tricks (like binary search, DFS, BFS, etc.).

What I seem to be missing is some fundamental analytical ability.

I'm not sure if that can even be trained.

I’m curious — what has your experience been like getting past the Pupil level?