"Experiment with the wet-in-wet technique. I like it because it is in the nature of the material. Water. It's a crapshoot in many ways, but I have learned that the accidental effects have spawned new ways of seeing and capturing things. Like surf casting in a sea of endless watercolor possibilities. Nothing like it. No barriers, no restrictions. Magic."
As to painting "loosely," what you may think of as loose really means "simply." But there is no painting 'simply' unless you recognize the important elements and paint only those. And without going over and over the strokes you have already painted.
As Hemingway said about writing, "You can leave out what you KNOW, but you can't leave out what you DON'T KNOW." Simple can be ignorant.
You have to do many miles of painting before you learn, eventually, what to leave OUT. This means that you have to develop your TASTE as you go along. You can be born with talent, but you have to DEVELOP it (by yourself and usually with some help). TASTE you have to develop by yourself with many years of practice. I disagree with instructors, in a way, who keep saying "paint simply." I know from personal experience I had to throw in everything INCLUDING THE KITCHEN SINK before I could discriminate between that which was really needed and that which needed to be dispensed with. Took a very long time.
This is the page where I plan to share my insights and experiences with creativity