I second this, OP. I can't offer any advice on the pool chemistry bc I have only had my pool for a couple weeks. But I can relate to your chemistry reluctance.
Math has always been my nemesis and has resulted in a life long math avoidance. Thankfully, the ABC's of pool care, explaining the concepts behind the chemistry are in words, not numbers. And with careful reading (sometimes twice) I am beginning to learn my way around and it is FABULOUS.
You dont need to memorize anything bc the info is always there to refer to, but you do end up remembering it. There are no complicated formulas to work out bc the pool calculator does it for you and it is very empowering to have so much control over the minutest details of your water chemistry. I was so surprised to find that I love it!
I understand your "if it's not broke, dont fix it" attitude, although in this situation I believe knowledge is power.
I'll be keeping an eye on this thread for as long as it continues. I'm curious to see how things go. Best of luck to you!