Well I would say do something you enjoy and comes natural. NOT something you are deeply passionate about, save that for a hobby and stress relief. Unless you can get into a really sweet job following a dream. in that case GO FOR IT!!
however have you ever considered the computer field? You are easily smart enough for it and could learn it all no problem. Plus to get the education needed to be competitive in the field is as simple as a quick 1 week online course followed by a cert test of some kind. Or you can simply self teach and take cert tests for each aspect you want to learn.
It has been VERY good to me. I have since i started in a matter of 6 years more than Doubled what I make and keep on going up. Plus with about 10-12 years in and a few certs you could easily clear well over 6 figures if you play your cards right.
I work a very standard 9-5 and it works well for when I have my daughter. Plus many career paths have the ability to work from home or remote. Some however do require travel and that is where you could make serious money fast but as a parent that isnt always an option.
just my :2cent: