I agree with this post whole-heartedly.
I would love to have the knees that I had when I was in my 20s. I spent my entire Christmas season in pain, and I am fearful that by next Christmas, I’ll be in even more pain unless I have knee replacement surgery soon, and then there’s the foot, which the doctor says is beyond surgery. (I’m 57.)
If nothing else, OP, use these years to become physically-fit and establish good eating, drinking, and exercise habits that will continue to help you throughout your entire life.
At this point, any food or drink addictions that you have can be broken with a minimum of psychological and physical suffering. If you are an alcoholic, get yourself into a program that works for you.
I spent my 20s eating way too much, developing a soda habit, and talking about exercising more than actually doing it. I thought I would be young and strong forever. If only I had known. At this point in my life, giving up soda doesn’t mean giving up sugar and carbonation–it means giving up puppies and that’s just not something I’m willing to do. (You’re too young to remember that Pepsi commercial, but all the people my age will know what I’m talking about.)
Well, now you’re warned. It doesn’t cost you any money to make wise choices about food and drink, and it doesn’t cost you any money to get in shape by walking, running, stretching, breathing, and doing chores that involve lifting.
And you’ll feel better about yourself! Exercise causes the body to release various “happy” hormones!
I hope this post is helpful to you.