I notice that I get frustrated quite easily when the time for a task runs out. This do not necessarily have to be deadlines that are not met, but also self imposed time frames for tasks.

Especially today was a rough day in which I did not complete much of the tasks I thought I would be able to do today. I'm at a point right now where I say quit that and ask the DEV community for help and advice.

How do you deal with the frustration or what are your methods to prevent this?