Injured and so discouraged

I've had to take it easy the last 6 weeks and it was very frustrating at times. I would say focus on strength training and find exercises that are low impact. If you go to Sparkspeople's Youtube page they have several workouts including one you can do sitting down. Even though my workouts have been severely constrained the last 6 weeks, I've still lost weight by being diligent with my eating. In fact, what you eat is more important than exercise when it comes to losing weight. But exercise is invaluable for other reasons and I can tell on the days that I wasn't able to workout, it really affected my mood and energy levels negatively.

I am in the same boat. Was sailing along well then bam! capsized.
This site has some interesting exercises: http://www.sportsinjuryclinic.net/sport-injuries

I was just starting to feel more fit, feeling like my old self a little bit and then I got hurt. I went to run across the street and my calf muscle clenched up. I could barely stand on it yesterday and it is a bit better today but there is no way i will be able to work out for a while.

About 10 years ago I broke my ankle and stopped training and stacked on the weight.

When starting at the gym this time round (3 years ago) I did an assessment at the gym and raised injury as a reason I might not be able to train. My PT pointed out to me that there are athletes with only one leg, and they train, so that is no excuse. Very few injuries exclude you from all activity. I found that great inspiration and have managed to train through/around several injuries since.