About a year ago, when trying to get in shape too quickly, I suffered a debilitating hamstring tear and knee pull. I should have gone to the doctor, but my hatred of all things medical prevented such. And, it did heal on its own. After a very, very, very long and pain-filled year. Still not 100%, but it is improving.
Due to the oppressive Florida heat, I'm stuck inside the a/c with my Acacia subscription and free Youtube videos.
Acacia is through Amazon Prime Channels - it's $6.99 a month and worth it. Loads of beginner, low impact, short videos. Youtube has Jessica Smith TV and she's likewise got tons of short, easy to do, beginner programs. I'm walking, stretching, doing cardio and push-ups for the first time in years. Well I did one push-up, but you have to begin somewhere, right?
Also, after that hamstring tear, a few things are apparent. It's not 1988 and no longer can I whip myself into shape in a week. I'm done with overdoing it and getting nowhere except on a crutch. Best to focus on what I can do right now, and build upon it slowly. A lifestyle change, not a quick fix. You know the rest.