Today I passed my 901 & 902 exam. I studied for approximately 6 weeks total and passed both on the first try. I wasn't really going for a high score I just wanted to pass. It wasn't as hard as I thought it would be. Both 901 and 902 were pretty much the same in difficulty for me. The material I used to pass is as follows:
Professor Messer videos/notes
Mike Myers Udemy videos/test
Exam Cram study and test books (didn't really use this often)
passcomptia.com (simulation and tons of questions)
comptia's certmaster (Great Investment!!!!)
My job is pretty relaxed so I can study as much as I want. I really think that helped. Overall it was a challenge because I didn't know what to expect but I am glad I accomplished what I set out to do. Network is the next one to tackle. Last but not least I want to say to anyone that is taking these exams......Your return will determine the investment you put into yourself no matter if its time, money or both. If I can do it.....so can you!!!