Maybe you should look at exchanging your Pi for another one. Manufacturing defects are rare but can happen.

I've used dozens of Pi's and never had bad reliability problems. Always use a quality 1 amp or more power supply, good name brand SD card, never remove power without running shutdown command to halt card writes, and never plug or unplug USB devices while powered up (older model boards don't handle the voltage drop well). I have never seen a corrupted SD card when following those rules.