Control freaks of Reddit, what have your control issues cost you? What happened?

It has cost me a lot of frustration.

I can live with my own failures and faults. It allows me to learn and improve. I cannot live with the failure of others when it affects me.

So any situation where I am affected I am in control. I am reminded of a quote from Mordin from mass effect: “It has to be me, someone else could get it wrong”