Information for its own sake to obtain doesn't have any lasting effect, it makes sense why you forget. Try to intake the information and have it cue a relation to your life, have it spark some internal thought. I'm struggling to articulate this, I've always been "a thinker", just think about things all day. I rarely finish books because whatever I read I think about it for so long.

It's my own personal reflection on information, knowledge, and learning, I hesitated to write this comment but I did at the chance it helps.

Information is basically a commodity these days. The leverage is in how the info informs your thoughts.