I don't drive very far, most of the time, so a tank can last me a couple of months.
I try to fill it when it drops below 1/2, but have let it get almost empty at least once.
I never used to pump my own, until my DH passed 2 years ago. Either DH filled my car, or I stopped at a full-serve station.
When I drove to my new house it was the first time I'd gotten gas on my own. Driving down, I stopped in New Jersey for the first night, and, as RedAngie mentioned, somebody there pumps for you.
Next stop was Virginia, and I knew I'd probably have to fill it myself.
I locked my credit card when I made my first attempts at feeding my car
It kept shutting off, and after the 3rd try, it wouldn't accept my card. So I left, and went to another station down the street, and tried again, with my other card. Success !
Small thing, but it was a personal triumph, that I'd managed to do something I'd never done before.