Didn't make it to the final round (SWD). What to do next?

As the title suggests, I did not make it to the final round for the software developer role. It was pretty disheartening, but was kind of expected because I think I didn't do the OA as well as I would like it to be. I was stuck on one of the leetcode-style problems for too long and didn't figure out a clean way to solve it in the end. I think Epic really is would love to work at Epic. Even though I didn't make it, I wonder what I should be working on to improve my chances of being reconsidered. I heard from online that I would be able to reapply after 6 months. Do yall have any good recommendations on the things that I could work on? This was also my first OA experience, so any tips on improving my OA abilities would also be much appreciated as I have a few other ones coming up.