Might be different nowadays but back when malls were a thing you could just go down to the mall and practice. 1st step for me was to set a goal to approach 100 women (or 50 or 20, whatever you can do) and go do it. They’re all strangers so it doesn’t matter if you goof up or look silly. Don’t focus on the results at first, just the process and mechanics of approaching, and review later what worked and didn’t. It’s like learning any sport or skill. Study, practice, review.