For whatever irrational reason I'm nervous about early voting and mail in voting. On a personal level I mean. Like that my vote won't be counted
I understand that, but on some level you don't really know it counted even in person. Just because you see your ballot go into a machine or use whatever electronic method in person, who's to say its being counted on the backend.
Democracy in general requires a bit of blind trust in electoral systems no matter what method you're using.