How do I?

It's so easy to give in and so damn hard to hold on when things just keep falling apart. I often say to myself --- everything is going to change for the better. As mush as possible, I try to look at the brighter side in every situation. But what if there's not even a dim light to see.... Hmmm just exaggerating. :) Actually, I'm faced with a problem of trying to figure out how to save my toenails from dying after wearing ill-fitted shoes during my 8-hour duty. Signs of poor circulation are showing as evidenced by purplish nails. :( Hope I can save them....