Q: My doesn't my car turn on?

Okay, this is something that it is not familiar to me since it's the first time that it has happened. Yesterday, while I was going to my church, my car starting spitting and shutting off by itself. I noticed that when I left my foot on the gas pedal, while in idle position, the car didn't shut off. It was something that stopped for a bit. After that, while I was going to my mom's house, the car started doing it again. This time, it happened frequently. In one point, no matter if I left my foot on the gas or clutch pedal, the car just shut off. While I was in a light, braking, the car turned off by itself. After that, my car hasn't turned on. I've tried a series of things: new fuse, checking the small fuses, oil, water; to see if the spark plug cables, as well, had electricity going through (it doesn't), the battery. We even punched the gas tank to see if it was the pump, it wasn't. What may it be?

My car has 220000 miles.
My car has a manual transmission.