One time when I was younger, I was playing with this building kit. It was essentially 2000 colorful pieces of metal and screws and wanted for whatever reason to build a super awesome looking helicopter. It was me and my cousin Michelle, and it was 2 o'clock in the morning. Laughing and talking as we played, my Dad woke up, opened our door and found us in the middle of the floor with more than a thousand colorful metal parts around us. "Go to bed!" he said. I instantaneously replied, "We're building a helicopter for Mikey!" (my little brother). He paused. Hesitated. Replied, "Ok, keep it down."
One of the easiest ways to get over myself and to give me permission to do something (i.e. build, think about something, make some form of art) is to say, "it's not for me." This, of course, is not the place we wanna stay. We eventually want to say that we ARE doing it for me, for I, and that that's plenty good reason.
For now though, baby steps.