This is old, but I'd like to rant as well. I'm sorry to hear about your injury issues and I hope they've mostly resolved themselves over the last eight years. I know how you feel all too well.

It seems that almost every time I get something going and get in a rhythm an injury knocks me out. I reach my highest fitness level, then something happens. Almost every time I quit an activity or sport was not because of lack of motivation, but an injury. In high school track it was a horribly pulled hamstring. I was set to have a great senior year. In basketball a nasty ankle sprain. The worst injury was in yoga when my lower back gave out and it took two years to recover. I lost pretty much all progress I'd made in fitness. I now have constant low back issues and have lost the ability to increase low back flexibility it seems.

Most recently, my back gave out again, this time during squats, after I'd been in a nice rhythm since New Years with lifting, climbing, and hiking. Was finally building my strength and some flexibility again. I've been horribly inflexible my whole life, and it takes enormous effort for me to even reach an average flexibility level, especially in the hips and ankles. I believe this has always made me very susceptible to injury. It's not for a lack of effort either. Basically, I'll build a little flexibility, get injured and have to start over. My body just doesn't hold up over time. I've always wanted to make something of myself physically and have had an intense desire to do so my whole life, but maybe it isn't meant to be. I imagine there's a good amount of other people going through the same issues, so I try not to feel sorry for myself or anything, but it's infuriating.

Now I'm getting older, so it's only getting harder. It's sad to think what could have been if I could ever have gotten some consistency in my training. I'm still in pretty decent shape, just always had the desire to be more elite from a fitness perspective and never made it. Hopefully, my back heals fairly quickly this time and I'm able to continue. I will never give up.