Hey! Your plan looks good and I really like how you’ve split it into understanding, recall and application, but I would make a few adjustments.
For understanding: you are completely right in saying that writing in depth notes on a word document is time consuming, and honestly, it’s a little useless. What you want to do is have a broad understanding by making mind maps and/or watching videos and/or the three column format (key information, own notes, summary) and/or draw things out. When I was trying to understand a process I just watched a bunch of YouTube videos until it finally clicked and it doesn’t take nearly as much time as writing everything out (which I also attempted). When you get closer to exams you’re going to want to switch to exam questions and looking at the mark scheme because that’s where you’ll see where you can get more specific marks, but for now just make sure you understand how everything works broadly.
For recall: uplearn is great for broad knowledge - keep using it. But if you want to do really well, you’re going to need to do more. Make/find flashcards (I found that online is faster but you can make physical ones too) and go through them often (there’s a technique called The Leitner System that I suggest you check out), write out definitions so many times that it basically becomes muscle memory, and (I know you said don’t say it but) exam questions. For exam questions take a look at which questions come up over and over again in papers and memorise them - that way they’ll become easy marks.
For application: yeah exam questions are basically the only thing. If your exam gives you marks for extra reading then do that. Other than that, it’s just practice.
Annoyingly, a lot of revision techniques work for some people and don’t work for others. I’d recommend testing all sorts of techniques out now so that when your exams get closer you will know exactly how to get the most out of your revision. A-Level Bio tends to include a lot of diagrams and step by step processes so when I was doing my revision I found that sketching things was the best way to memorise, but this could be different for you.
Also quick disclaimer - I did AQA, but I’m sure these techniques will work the same way for OCR!
Good luck with your revision!