Interestinnggggg, RAW files seem like they're 4-6 times as large as the jpegs I was taking before, so not awful, but definitely big!
I'm not sure what made you think I can't change my aperture smaller, I absolutely can! That lens kit looks just like the one I'm using, though I also have another one that's EF-S 55-250mm f/4-5.6.
And no worries, it's not like you had any idea what my background is.
I was just looking stuff up as well and found darktable, which seems to work well, but I feel like I'm doing something wrong, what exactly should I be using darktable for? I'll have to explore GIMP and Affinity, as I don't have any experience with them.
Thanks for all the feedback! It is greatly appreciated.