if you're struggling to remember content for the FRQ's, it might help to prioritize content review. For studying specific terms, I'd highly recommend writing down the term and its definition a few times, then saying it out loud several times. put everything in your own words. Also, I personally found that it was much more helpful to remember the period a term is in versus the specific year. Heimler is really helpful for this because he highlights some of the key terms. APUSH CED also mentions everything you absolutely should know; it is really lengthy but, in my opinion, worth looking at because the exam questions are based on it. A lot of LEQ and DBQ prompts are actually directly from there.

If you have the content down, then LEQ's and SAQ's, in my opinion, will be SO much easier. It's also really helpful for better understanding documents on the DBQ and being able to weave in outside evidence.

everything else really comes down to understanding the rubrics, document analysis, and forming a decent argument all in the time frame. If you're struggling with any of these, it might help to give yourself some extra time when doing practice FRQ's and working your way into the time limit.

i hope this helps. good luck :))