Nursegirl, I'm not sure going up on Lexapro wouldn't hurt more than help -- the poster is already at twice the highest recommended dose. I guess it might, but it might also make things worse -- it did for me when I went up too high and others on here have reported that as well. I think I see it differently -- medication will only cover up the grief of the divorce and it therefore has never had a chance to run its course because your doctor put you on drugs rather than send you to therapy to work out the grief. As I often say, when depression and anxiety come from a specific event it's actually treatable through therapy much more so than when it's just random, and when you suppress it things never resolve. I wonder therefore if drug therapy was the best choice here, as divorce bothers everyone and no drug cures being sad from sad things happening. I know that temporary relief is often necessary but it's been a long time now and it sounds like you're ready to move on but the drugs may be what's holding you back so you're trying to tone them down but doing so the way you're doing it just causes the problem to move on from sadness to medication withdrawal.
Why would you run out of the Klonopin? If you take it as prescribed, you should have no problems.
Taking it erratically is most likely causing the issues you're having. Quite frankly, IMO, it would be better to not be on the Klonopin at all versus taking it like you are. Klonopin is a LONG acting benzo that builds in the blood plasma to create a more steady state of calm. It's the act of taking it regularly (usually twice daily) that makes it effective as an anxiolytic.
Have you tried increasing your dose of Lexapro? I would recommend talking to your doctor about that for starters. Also, are you in any kind of therapy? If not, that's a good idea as well.
If you plan on continuing to take the Klonopin, then you need to take it as prescribed to avoid this roller coaster effect. It's causing you more grief than it is helping.
Keep us posted!