Having a good schedule and sticking to it is necessary.
Many find it easier to just study a little bit each day, rather than studying a whole bunch every once and a while.
This makes it a lot easier to do and enjoy.
Plus you retain it better.
Try pouring a little water to a stack of four paper towels. If you just put a tiny bit in it will hold it and absorb it.
Now try doing the same by pouring a whole glass of water. It’s not likely it can hold it all in and it will most likely not absorb as much as in the first project.
Yes you don’t overwhelm your brain and you thus understand more.
Plus as it’s constantly put into your mind each day it is bound to sound it into your brain much better than an occasional high dosage of study.