Yes, absolutely check into community college! It will probably make a world of difference for you, and set a great example for your daughter. You will find many adults who are going back at the community college as well. It's not just JW's who need to upgrade their skills out there. Just don't make the mistake of taking on a full class load to start. That would be overwhelming for someone with a family, a job,who has to attend the kh and do field service. It might discourage you from continuing with your education.
Those adults that started college a bit older (myself included), start with one class to get their feet wet, and then take two classes a semester after that. It takes a little longer that way, but you can always take 1 class in the Summer as well. Your local college should be able to give you an apptitude test to see where your strengths and interests are. That might help you in deciding which road to take.
If you are given grief over going back, can you simply tell them that you cannot do construction your whole life, and need to provide for your family? Just don't talk about it to the jw's. I know women who have gone back as jw's, and they just didn't care if anyone liked it or not. One even went for her Master''s. Both had to provide for themselves/families, and simply did not discuss it. I guess it depends somewhat on the type of congo your in. Hope it all works out for you! It will be the best thing you do for yourself and your daughter. Have a great weekend. DATA-DOG!