[davidhyde]

Try to learn something difficult. Something that you really struggle with and find mentally exhausting. Preferably something useful but it’s not a waste of time to try learn something that you may never use. For example, if you are not naturally talented at math try to fundamentally understand general relativity. Or learn a musical instrument if you are not musical. This may not work for everyone but it works for me. It has reversed the arrow of time for my brain for sure.

Take your time, months or years if you need to. Learn different things at the some time. Mix it all up in there and let it brew while you sleep.