You take a sentence or a few sentences and repeat them to yourself x80 times, you read looking x5 and then alternate to repeating from memory x5 until you have done a sum of 80 readings, the info is now in your short term memory. You also have to connect sentences together so once you have memorised 1 sentence and the next sentence you have to repeat both of these together for another x30 times with alternation of looking and repeating from memory.
Once you have done the above keep looking at your notes now and again to refresh your short term memory, you have to do another x20 readings before sleeping.
By the next morning the information will be in your head (will be transferred from short term memory to your long term memory) inshallah.
I use a similar method and I think I have memorised around 30+ ish pages of pure text like this word for word and tons of marksceme answers for computer science ha.
Yh writing out/typing out is good too. Its a good way to test yourself and just memorisation in general but you have to do it sentence by sentence.
You can also use loci memorisation, it can be a better method for certain notes if used correctly.