GC - As a woman who is older than you and has been playing golf a lot longer, I can tell you that this will never end. Harry's suggestions have merit and will work, but the issue is that you have to handle each wannabe helper differently. Some will back away if you tell them you have an instructor or don't want to get confused with additional swing thoughts, but some will not and you may have to be more blunt or even rude. When this happens to me on the course or range - I start off politely, but don't always end the conversation that way. Strangers have tried to touch me too - I will make a joke that carries a warning that they can't miss.