Math exam was simple, nothing compared to nursing school. You have 3 attempts to do it I believe. I didn't have trouble with the syllabus. If you have any questions, the instructor usually replies fast. It took me about 5 months in total because I kept putting it off.
Absolutely NOT! When I was a CNA, I took care of an elderly woman in her early 90s. She was a teacher for 40 years, retired, and went to nursing school and got her LPN when she was 62.
Do it! I worked LTC as a CNA. When I got my license, I started looking for jobs aside from LTC. I found a full time Med/Surg position at a hospital less than a mile away from home. 4 years laters, still there. I love it, it keeps me on my toes. I get floated to the ER a lot, and I love it. They won’t let me switch permanently to the ER until I get my RN license.