If you really want to do it, you do it. There are no excuses.
I think humor is used a lot of the time to keep people from getting too close. Humor side-steps and shifts the meaning.
In art, the only one who really knows whether what you've done is honest is the artist.
And I don't have any specific steps to take because I don't start the same way every time. But there is a knowing when it's enough and you can leave it alone.
I like to use my hands and make things... It might seem pretty stupid or pointless but that doesn't matter... some of the most interesting work is the stuff that starts like that - out of a raw need for activity.