Creating characters is like throwing together ingredients for a recipe. I take characteristics I like and dislike in real people I know, or know of, and use them to embellish and define characters.
I am often accused of being childish. I prefer to interpret that as child-like. I still get wildly enthusiastic about little things. I tend to exaggerate and fantasize and embellish. I still listen to instinctual urges. I play with leaves. I skip down the street and run against the wind. I never water my garden without soaking myself. It has been after such times of joy that I have achieved my greatest creativity and produced my best work.
I do write a lot from personal experience, but I also embellish a bit.
When you're writing a script you have the option to embellish on life or switch the order of events or make it generally more cinematic. I would stick too closely to my own experience and not necessarily think about the fact that it needs to have an event happen. Realising that I could channel my own experience into a story that was slightly more cinematic was a very important moment for me - allowing myself to accept that the kind of screenwriting I'm doing is a work of fiction.
I like the thought that what we are to do on this earth is embellish it for its greater beauty, so that oncoming generations can look back to the shapes we leave here and get the same thrill that I get in looking back at theirs - at the Parthenon, at Chartres Cathedral.
I'm not really a person who loves things that are surreal or not grounded in real life or reality. I like that - I want to find something that I can relate to and then maybe do a little bit more and embellish.
Once you find the right idea, then go ahead and embellish it.
I'm sure you have a theme: the theme of your life. You can embellish it or desecrate it, but it's your theme, and as long as you follow it, you will experience harmony and peace of mind.
I just find things that work and embellish them.
Embellish the soul with simplicity, with prudence, and everything which is neither virtuous nor vicious. Love all men. Walk according to God; for, as a poet hath said, his laws govern all.