I have been struggling with the same issues after taking a stressful job and having a death that hit me hard. Just start small and don't pressure yourself, I find making plans to go ride means I have to. So schedule it, tell some "I am riding today".
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan