Being humble and slow is a great way of being, and it will great enhance the creative processes… let me explain…
Humility is big when it comes to the building of relationships with real people and/or the fictitious characters you maybe creating. Humility allows you to explore, and to understand without judgment, to ask good questions and to empathize with the predicaments and struggles of others. True humility comes not only from an honest appreciation of ones own flaws, but it filters through a lens of grace, the simple understanding that we are all flawed and that it is okay.
Going slowly, in your exploration of characters and story (the same thing) is also vital if you wish to produce work that will sustain and/last. Just like real life, it takes time to really get to know someone, and without patience the process is forced and rushed; people (or your characters) will be misunderstood and assumptions will be made, and your life (or work) will be poorer for it.
If you feel like rushing today… take your time… breathe deeply… have a cup of coffee with your character or friend and simply… listen.