I'd like to add something I haven't seen posted yet: Your body may not last as long as you think it will, at least not in top condition. I'm 37 and I've had lower back pain due to a herniated disc for 2 years now. There's no easy fix for it. I can get around and enjoy life, but some of the extreme physical activities I used to like (example: freestyle/backcountry snowboarding) are pretty much off the menu. I'm glad I did them a lot when I was younger.
So I guess what I'm saying is, don't think you can just work a lot when you're younger and do whatever you want when you're older. Nature may limit your options. Make sure you do the things you like to do when your body is strong and healthy enough to handle them.
On that note, take good care of your back. You can heal a broken arm or leg, but you can't heal a herniated disc. You only get one back. Bend from the knees, sit up straight, use ergonomic furniture, and don't walk around with 200-pound backpacks.
So I guess what I'm saying is, don't think you can just work a lot when you're younger and do whatever you want when you're older. Nature may limit your options. Make sure you do the things you like to do when your body is strong and healthy enough to handle them.
On that note, take good care of your back. You can heal a broken arm or leg, but you can't heal a herniated disc. You only get one back. Bend from the knees, sit up straight, use ergonomic furniture, and don't walk around with 200-pound backpacks.