yeah I do! it autocorrects on my phone and it's just kind of muscle memory at this point when I'm typing. it's rare that I bother with capital letters though, unless it's 'I' - bugs my friend but it feels more casual this way
I got in the habit of typing as accurately as possible, pretty much when I first learned to type. I was never a big "internet slang" person...so, that has helped. I find it easier (and faster) to just type words properly (including things like apostrophes). I feel like, there's a natural flow to typing...and you don't really notice little things like that when you are simply doing it. If anything, I use ellipsis too much. Lol.