This is an important lesson that I've learned but struggle to follow:
Whether we're talking physically or spiritually: healthy, confident, secure people don't get that way by accident. No. They fight and work hard for it. And health is such a rare thing these days, that when people see it they are drawn to it and desire it around their lives. When you fight with everything in you and become healthy, you will notice that suddenly everyone seems to want a piece of you, your time, your wisdom. And unless you're diligent and learn to say "no" sometimes and keep boundaries, you will slip out of being healthy before you know it.
Be very careful.
Be very wise.
If you've worked hard, protect it.