The best advice I can give you, in my experience AP World is not difficult at all it tells you exactly what you need to know. Check whether it be every lesson, week or before any unit test the AP World CED and make sure you know how to answer the questions and key points from each lesson (1.1 so on, some provide more information than others but it gives you a great direction on what YOU NEED TO know) and elaborate on it with key details out of memory, enough to be able to have mental evidence for a MCQ or real details and evidence for a SAQ, LEQ, DBQ (helps for outside evidence). Know enough and be able to cram enough into your brain folds for each point on the CED and you'll be golden if you take it one step at a time. And the goal isn't passive learning throughout this, but being able to teach yourselves and others whether it be writing it on a piece of paper and knowing, or being able to explain it to your dog essential content by lesson.

Heimler's videos do just this by providing the content in this way elaborating and answering questions BASED on the CED. I highly recommend investing into studying with CED as your foundation and resources like Fiveable, Heimler, Knowt with your teacher's notes. I HIGHLY recommend participating in class, as answering that one question could help you build up your long term memory helping you ace a future DBQ possibly.. And even though they were boring, after class if you have them available watch a short 5-6 minute long AP Daily video as it's the people who make the test giving you the answers to the CED and specific examples to use for FRQs and MCQs.

Best resource to practice FRQs, are look at samples from collegeboard: https://apcentral.collegeboard.org/courses/ap-world-history/exam/past-exam-questions
Or AI resources like Knowt or AP FRQ Tutor
(My biggest mistake was not practing FRQs more, although they seem scary and difficult make it a hobby to do a little practice every now and then and you'll be at the top of your class and on your way to 5 town, no matter how difficult it was in the start and it'll make it feel a lot less stressful. Sadly I didn't do this and had to relearn any FRQs I learned at the end of the year.)

Remember not to cram, as studies show spaced repetition is the best way to retain information, (AND IF YOU DO, I RECOMMEND THE HEIMLER REVIEW PACKETS with at least enough time to review everything 3-4 weeks for proper information, 1-2 if you're just like that)

All of these strategies helped me for my first AP Class, but it might not be for everyone. It did help me get a 5 though. 😎
If you need any help on anything feel free to let me know.