That is AWESOME! You are not crazy! If anything I feel old, I am 26 and burnt out. Law schools would be so lucky to have someone like you. People who succeed are the ones who generally have life experience and I really think you can thrive. It is never too late to make a change, you can even pursue law part-time while raising your family. Do not give up and I think coming to this forum was the best first step. I avoided forums during my prep and now that I am waiting to hear back from schools I find it so supportive and comforting.
Here are my tips:
1) Khan Academy was a great prep, it was fun and engaging. Most importantly it will prep you well because the new format of the LSAT will be online.
2) I used 7Sage Videos on Youtube to master logic games..
3) Another trick that saved me because I didn't study for my second LSAT but jumped 23 percentiles, from the sheer fact that I rented library books. Go check out books from different prep companies, I found in the end I copied the methods from Khan academy with some tricks from the other books. Pick old books from the early 90's too. People made fun of me for doing that but it paid off for a few questions on the real LSAT which I immediately recognized because I referenced old materials.
I essentially made a hybrid of my own method towards solving questions this way, that worked with every type of question.
4) Save your LSATs, you dont want to waste them!
5) Look at the law schools near you and see if they offer an Access to Learning and Law program. Since you are a mature student you have a high chance of being accepted and they essentially pay for your LSAT prep. Obviously, it might not be the greatest, I did mine at Osgoode, but the point is it made me familiar with the material. It was a nice introduction that put me in a good position to self-study.
6) Buy your LSAT clock now and practice with that. I don't know if the new timers will be digitial but what I did was buy a "nurses watch" from amazon. https://www.amazon.ca/gp/product/B00GHG413S/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
If you look at that clock you will see that the seconds are shown really clearly, it was a perfect size and required practice to get used to.