I'm getting too old to do the math. I just know that it's about 4.5 years since I first shaved my head. BBC. I've never gone back. Occasionally, I may go a week without shaving my head, but that is very much the exception than the rule. Notice last week, I was traveling so did not shave my head. I'm seeing some white hair on the sides now.
Your new style looks good. Let me encourage you to keep it up.