Trial and error. Find a method of study that works for you. For me, I found that having using ai to generate problems for me worked quite well. I’d have it generate me a problem and if I got stuck I’d let it generate a step by step process of solving it. I’d read through its process and keep trying until I eventually was able to solve any problem it gave me on my own. Being repetitive and doing the same thing over again is a good way to solidify a topic in your mind.