If you're going to go the Direct Learning path. I suggest you follow the outline in the Genius Code course or the Photoreading Book or the Better model in the Natural Brilliance book which gives the script for the Direct Learning project.

Once done leave the books closed for at least a week or more if you can. If you really have the urge to activate any follow the strongest urge for the one. This would be your inner pilot telling you you need to know this consciously. However it's best if you can let go for at least 3 weeks before you start hunting for improvements.

The funny thing about things like Self esteem they tend to show up rather quietly and unannounced.

As for not believing you could learn it from a book without activation. As someone with good self esteem how they do it. You find they have a problem telling you what it is that they do that creates for them the good self esteem. While books are written describing what people think makes for good self esteem and what those people seem to be doing in reality, Self esteem is a personal experience. If you want to 'experience' it. It isn't necessarily through conscious learning that it can be experienced.

Alex