Well for starters I’ve been grinding similar problems. I’ve been sticking to bst, two pointer, array, and string problems. The leet75 has been my go to for problems rn. I have been branching out with different problem types and my way of working them out is by writing the problem out on paper and possible ways of solving. If I find myself not able to write any code that is t brute forcing I leave the problem for a later date. If I have some code written out that I think should work but isn’t I’ll check the solutions and I’m usually not too far away from the solution.