I think the main problem is not having many ideas, many of which you never end up fulfilling. The main issue is simply not actually doing anything at all. When

I think the main problem is not having many ideas, many of which you never end up fulfilling. The main issue is simply not actually doing anything at all. When I start on a project, I like to keep a really open mind since the most expensive kind of mistake is a failure of design and having keeping an open mind can help avoid that.