There's not any rocket science here, but there's also no unicorns and butterflies, which unfortunately the FIRE community has seemed to make it out as.
Your debt service is a big part of your outgoing money. Because you've got rental properties, that's not unexpected. But those debts are not going to go away and you should constantly be looking at them to determine if you really, really are making money from them. There are tons of people who own rentals and think they're making money and when they finally put together a comprehensive spreadsheet of income and expenses, they're surprised to find that they lose money....even when figuring future sales.
You're looking at the now. Swim lessons, Amazon Prime (which I have never understood....I just buy $35 in stuff and wait a week for it and it still ships free), gymnastics. Those are all now expenses. How about college. Do you know what colleges cost? What are the majors available at local community colleges? State colleges? Do the community colleges have robust programs so the courses can be transferred? People say all the time "Your kids can take out loans for college but you can't take out loans for retirement". Well, they're wrong. Beyond Stafford loans, all other loans are parent loans. Even those labeled student loans require a cosigner which means you which means it's your loan. Where I'm going with all this is that college is expensive. Some states like CA are cheap. Some are not. Resident state college in my state, living on campus is over $30k. (which to me is cheap as my older son is just finishing at private college....this fall, incoming freshmen pay $70k a year and yes, some people, like me got zip for aid, so we paid full price. Anyways, know. Don't go retiring, thinking it'll take care of itself. College is expensive and takes planning. For you it's planning times 3.
While I get that you want to FI early, I honestly think you've got a number of decades ahead of you.