Jump rope? No. No experience here, because it's not the 1800's.

Jumping is high impact and can be tough on the joints, especially if you're starting out overweight. So, maybe just start out walking, or swimming for better joint health.

Setting a 1,000,000 goal for anything is a bit extreme. That's a goal to count to 1,000,000. Have you ever even counted to 1,000,000? Nope. Neither have I. It's a recipe for failure, even before you start.

How about setting a goal for going out and walking a mile 3-5 times a week. Work up to it by increasing your distance until you can do the whole mile. If you can do that for a few months, up it to 2 miles. If you're consistiently doing 2 miles 3-5 times a week, you're going to see a huge difference in your physical fitness.