It's the summer holiday for me right now and I've been spending a lot of time doing math problems. I've done a bunch of Olympiad questions and the like recently, and I feel like I've hit a plateau recently. I don't seem to be able to improve nearly as quickly as I did just a couple months ago. I've only recently started doing Olympiad problems and I was wondering if it is normal to feel this way. Is it possible that I am still learning a lot but not realizing it?
I wonder if you guys have any ideas on how much practice is overpractice and instead harmful for me.
Are there any other ways to improve mathematical thinking other than just doing more problems and reading up on theorems?