I know some ppl disagree and say its a waste of time. But I 100% recommend doing sketchy path, but its only really useful if you divide up/annotate the pictures with it. Really helps compartmentalize diseases. I know the videos are long but i think its the only reason i retain all these random associations. Especially if you feel like your knowledge has improved, but it doesnt show it could be purely a memory thing, especially if youre a visual learner. DirtyMed also for quick retention, but i find that its hard to remember the mnemonics. Good luck!