Being able to know what you can do is important. This means what clients ask you to do, what all is already on your plate, etc.
An example of this includes today when I was asked by a client to do a project. I could have done it, but didn’t feel comfortable doing it. I let her know I could do it if she couldn’t find anyone else, but didn’t feel I could do the project real justice.
Maybe you have a lot on your plate – but that doesn’t mean you wouldn’t enjoy doing the job or would be a perfect fit because of your experience.
It is always a good idea to make sure you aren’t going to be adding more stress to what you already have going on that day. Make sure you know what you can handle realistically.