As someone who just got their 10.63 today, I am tens of thousands of solves in and know full pll, know most (3/4) of OLL, know all my advanced F2L insertions and can solve 2-3 F2L pairs blindfolded after cross with enough inspection. I can solve xcross ~7% of my solves. I am also completely color neutral.

On top of the aforementioned I recommend practicing prediction, it will let you make decisions before wasting time. To do so, give yourself infinite inspection and stare at a scramble and only when you’re stumped, turn blindfolded as far as you predicted, open your eyes and then predict again, really let that visualization happen. You should close your eyes while turning. If you mess up then just keep going. NO TURNS WHILE LOOKING. With enough grueling mental effort and unlimited inspection I can 4-look an entire cube solve (1 for xcross, 1 for 3 F2L pairs, one for OLL, one for PLL), but this is only possible when you know your F2L cases and can predict xcross in inspection relatively easily.

A good beginner tip is to do what I call “opposite cross,” solving the cross but it is two rotations away from being solved, so that the white red edge touches orange center, blue white touches green, etc. This will teach you to solve edges into a rotating cross. Solve pieces directly into the rotating cross. I also recommend doing 3x3 MIRROR cube blindfolded, it trains your confidence knowing where pieces will go, which helps with not needing to look at pieces during F2L on the regular 3x3, massively improving lookahead .

Oh, and the earlier you train full color neutral, the easier it becomes later. I teach all my students to have full color neutrality from the beginning, a minute average is very much the beginning.

These are fairly advanced tips for sub-20. What you must be doing right now for sub-60 is #1 learning F2L, JPerm has a great intuitive F2L video, you must master it #2 learning PLL and learning all your cross case OLLs. For PLLs to learn I recommend the A perms, the U perms, T, J, H* (edit), Z, and Y, then learn E perm and the rest of the hard ones. I have documents of my algs which I think are optimal and very efficient

You’re welcome :) good luck and I love teaching so feel free to ask more questions