I took a while because I took a lot of detailed notes and made mnemonics for each concept. I am very methodical.
You should re-read all notes in a period of one or two weeks. Re-read the mnemonics every day. I also created mindmaps tree of concepts using Mindomo and attached mnemonics to branches and leaves. This was also time consuming. However my aim is not just to pass certification, but to actually learn all the concepts and constructs taught by the certification book. I used Jeannie Boyarsky and Scott Selikoff's book. Passed
Java 11 in 2023. You can do it!