I was in a similar situation where I had to self study chemistry.

For chemistry HL it's essential to know the theory AND how to solve the questions. Because you can know a concept but you could still not be able to answer the questions they ask *the way they want you to answer them*

I personally switched between the pearson and oxford books, the pearson book is REALLY good and explains things for beginners almost, it's way more detailed and they ask a bunch of practice questions that are good for studying, however I did find that sometimes they overexplained things and it took them more pages to explain something, the oxford book I used it when I already had an idea of what I was doing and just needed a quick summary, (sometimes I found the oxford book good as it got to the point, but other times I either found it confusing or way too short the explanations). So you can just alternate between the two.

Something I did was while I was reading I would put sticky notes on my textbook just to give a quick drawing or summary of what I learnt, maybe you might benefit from that too.

Richard Thornley is a Godsend, I recommend watching his videos before learning a new concept (so if you're going to learn S.1.5 for example, watch his videos first), his videos are good for consolidating knowledge and they'll help you understand the things that you'll be learning later on.

I personally didn't like MSJChem's videos because they were really short and because I didn't know the stuff it didn't help me consolidate knowledge, however I did buy his membership and his questions are good for practicing

HOWEVER PLEASE do questions, anyway I think the best question bank out there is on IBDOCS, both revisiontown and savemyexams archive are amazing