No, you made sense. My mom surprised the hell out of me when my little brother began his transition (female to male). Conservative as hell and is not just accepting of it but trying to learn more about it (she was misinformed, much like your mother).
From my perspective, try not to think yourself a burden on your mom. Trust me when I say being a parent is hard, and especially difficult when you can't save your kid's world, but it's not ever a burden. Ever. You want to carry your kid's weight so that they can have a better chance. It's selfless. You want the world for them, and regardless if they let you, you'll work your *** off to make it so. You're not a burden, you're her kid.