Hey OP,
... you're stuck between comprehension and retention. The comprehension ... is believed to be the longest and most exhausting part of learning. ...
... you're struggling to remember what you read an hour ago, it is likely that the information, in the way it is presented,is not clicking with you ... the best bet would be to find a supplemental resource that will word things differently...
=== Another reason: one page is way too much; read a smaller chunk; read again and again - until you understand everything. Take a 5min pause - do not think about the text.
After 5min or more, try to recall it by writing notes ( if u are not sure about smthg, do not
think too long ( false memory !!) ===
.......
The retention is where spaced repetition comes into play. ( === Anki or Textbook ).
... it takes about 3 consecutive days to commit something into long term memory.
Anki's algorithm is : 2 tests on First day ( after full comprehension is achieved); Next day;
2d after that; 3-5d after that ; and keeps doubling forever. ===
... there are other methods of spaced repetition , but require significant organizational skills. .... the recommendation for retention is still flashcards. Making flashcards in itself is a form of learning as long as you are not copying and pasting .... Flashcards ... should be written in your own words and have at most a few ( === up to 4 ===) facts.
TL;DR - 'Spaced' ( === Passive==) reading is not effective unless you are actively reading. ... it means you ... write yourself questions ... that later ... you should be able to answer.
=== And here we have come to the Natural solution: writing the Questions on Anki cards 🙂
On the Back side of card, we can write the Source; page number; and question number.
That way u spend minimum time upfront to make cards. Later, during review, you may write
the Answer ( ! in your own words !)- if it is short one; or list the major points ....
PS. There are 2 more users who purportedly follow this idea. 🤔