Q: starting problems

whether the issues was related or not one day when I turned the car off the fan motor continued to run. I took it to a mechanic who said my problem was electrical which he did not handle. He however bypassed some relay switch which would allow the water to circulate while it was running I had to remove the fuse after I shut down the car or it would continually run even when the car itself was not running. if not I would find the battery dead the next time I tried to start the car.. Now along with the fuse issue when I engage the clutch at start up it makes this god awful sound. If I suppress the clutch all the way it makes the sound when starting and shifting gears. If I back off just a tad when pushing in the clutch I can eliminate the sound . Now the latest is while I was coming up to a stop the car died. My first reaction was to push in the clutch and turn the ignition key to restart the car. But as I pushed in the clutch the car started with out me doing any thing with the key.

My car has 150000 miles.
My car has a manual transmission.