In A Rut

I have had a hard couple of weeks. I'm finding it harder to get into a good feeling place. How can I feel good when nothing good is happening? I know why nothing good is happening but it's hard to feel good first. It's always easier to have good things happen and then feel good. I've tried the exercises and usually they work, but not lately. I know this stuff works and I know I can do it. I'm just having a hard time right now. How can I get into a good feeling place when I don't feel good? Any thoughts would be helpful.