Why don’t more people paint? Because they’re afraid they’re not talented enough; because they’re afraid they’ll do it wrong. In reality there is no “wrong” way to do paint. Just ask my son. Heck, just go ask Jackson Pollock for that matter.
First let’s start with the materials — you’ll need paint and something to paint on. Steal your kid’s watercolors, go to the local art supply store, whatever works for you.
Now we’ll address the mindset — assume that you will suck at painting. That you are the most dreadful wanna-be that ever held a paintbrush. That no matter how hard you try, you will never be able to duplicate any famous painter’s work. Now that you’ve blown all expectations of success at this, you have nothing to lose but a little bit of time. You are ready to start.
Free yourself from any constraints of style or technique — just have fun! Experiment. Put different colors together. Layer them on and scrape them off. Put colors next to and on top of each other. Let them drip. Try different brushes. Try something that’s not a brush. Use your fingers. Use your feet. Don’t think too much about it, just happily follow where your creative mind leads you.
What do my son and Jackson Pollock have in common? They both found joy in painting. They didn’t paint because they were good at it; they became good at it because they painted.