Best way to Self Study
 

Watch relative exam videos or read books/pdf and simulate what you learn using particular certification workstation to better understand what was watched and read.

In school I was always told if you read/hear an answer to a questions you have a way higher chance of remembering that answer. So I always make sure that I write or say an answer three times and it has worked out pretty well for me.

I think, watching & listening is the best way to learn anything.

Avoid all distractions
Set small study time
Expect problems and won’t be disappointed
Cover the same topics from different angles.

Make schedule to study and follow them seriously, it will work.

Once I've read or listened to something I like to speak aloud a discussion of what I just learned. If I can put it in my own words I know I've absorbed the information in a meaningful way.

Reading, Travelling and exploring does the work.

read a lot .. lot of books.

In my opinion, I think it includes:
First of all, find exactly documentations, books relating what we want to learn
secondly, look at content, Surely you know what sides you need to learn
Thirdly, take note everything while you read books, more short more efficient
Finally, when you finish, you forget a big part of which you studied.
But it's an interesting truth you must realize that your knowledge is things which you remember after you forgot.

Best way is to find out the time when you can concentrate on studies. Different people can concentrate at different time of day / night. Usually, to read any new topics, early morning is the productive time when there won't be any kind of noise and mind will be fresh when you wake up in morning. You can practice what you studied, in evening.

Drink water when you feel sleepy or tired while studying. This helps in keeping your brain alert. Take breaks in midst of study, at least once in an hour. You cannot keep on studying continuously always.