The engine cut out while driving and the won't start.

The engine cut out while driving and the won't start. The 1st time it happened after 10 minutes it started. 2 months later it would not start after letting it sit. So I disconnected the Neg. Battery cable for 15 minutes then tried it it wouldn't start. Next I pressed the fuel pump reset and it started. I drove 2 miles and it died. I pressed the reset again and it would not start.