Enough is enough! or is it?

A question that plagues those of my field:
Q:
The question is how to decide enough is enough when you feel alone, and change is hard.

A:
My first thought is always if you have to ask then the answer is what you believe it to be. That is generally my rule, since asking is just a way to validating the obvious choice. However, that kind of logic only works if the reasons for the decision are good. If you are unsure then stop and examine the reasons. Self doubt is not a good reason for a change, think about it are you making the change because it is easier than seeing something through? Before we move on let’s take a moment to consider something else, is the reason for the failure because you screwed up or because it can’t work. The most common reason for doubting a decision besides fear of change is knowing that you haven’t exhausted every avenue, so consider: will a fresh approach work? (Like instead of trying to get it work despite strong evidence it will never work, trashing everything and designing something from the beginning that takes into account the lessons learned.) Perhaps that will fix the underlying problem, and make the whole decision process irrelevant.? I have kinda lost my head of steam cause I got side tracked so I think I will wrap this up, but no one is as alone as they think they are. Find a sympathetic person and talk to them, don’t be shy and don’t go through something alone when you have friends. Or perhaps this is one of those times when I should just keep my mouth shut.