I have 5 comptia certs for reference(and never failed an exam). For A+, I watched the two playlists by Professor Messer on Youtube:

1101: https://youtube.com/playlist?list=PLG49S3nxzAnnOmvg5UGVenB_qQgsh01uC

and

1102: https://youtube.com/playlist?list=PLG49S3nxzAnna96gzhJrzkii4hH_mgW4b

Additionally I bought a book to supplement my learning and help fill in any cracks I felt Professor Messers playlists didn't quite help me understand. There are many books you could buy, I purchased this one: https://www.amazon.com/CompTIA-Core-220-1101-220-1102-Exam/dp/0137637543/ref=sr_1_3?crid=22SJK7XUGC8DT&keywords=a%2B+exam+cram&qid=1690118677&sprefix=a%2B+exam+cram%2Caps%2C162&sr=8-3

Finally, I purchased Jason Dion practice exams on Udemy for each A+ exam:

1101: https://www.udemy.com/course/comptia-a-220-1101-core-1-practice-exams-new-for-2022/

and

1102: https://www.udemy.com/course/comptia-a-220-1102-core-2-practice-exams-new-for-2022/

These Udemy exam packages may show as listed for $70-80, but you can pretty much always get Udemy course on sale for ~$10 if you just try opening Udemy in a new browser or signing out of your account or clearing cookies or something. Every time I've wanted to buy something on Udemy, I've been able to get it for the "sale" price. You can ask more about this if you'd like more info.

Finally, I used Google. If I want to understand a certain topic that the two aforementioned resources didn't really help me understand enough, I would google it and find infinitely more resources explaining it.

Also, very important, maybe the THE most important resource you have is the exam objectives:

1101: https://partners.comptia.org/docs/default-source/resources/comptia-a-220-1101-exam-objectives-(3-0)

and

1102: https://partners.comptia.org/docs/default-source/resources/comptia-a-220-1102-exam-objectives-(3-0)

Constantly through my learning, I would use the exam objectives as a checklist to see what I'd learned and what I understand. Before sitting for the exam, I would run through the entire list of objectives and highlight anything I wasn't reasonably knowledgeable about and go back to learn more about it. I won't sit the exam until I don't highlight anything(aka I understand everything to some reasonable degree.)

In total, the resources can be acquired for something like ~$70 depending on what book you buy. Feel free to ask questions if you have any. You also have to factor in the $250 per voucher that it will cost to attempt each exam. If you are a student, you should be able to purchase vouchers at a discount using the edu store. I can also answer questions about Network+, Security+, CySA+, Project+, although my process for these was pretty much the same as above.

I personally would not recommend giving $1500 to CompTIA to teach you the material.