I bet if you just re-language the 'I can't do this' to 'I can get thru this', even thru the pain, it will send that message to your whole mind, and all your body cells that you are seriously getting over this.

I learned something quite unique with this cancer, which I had to shrink some, before I could get surgery ... and it might help you here.

Our bodies (which includes our minds and emotions) want to heal, and want to repair us, even if we aren't aware. This is scientific now, okay?

So, if we tell our minds that we have to get over something, and heal our emotions, our own wondrous bodies will heal the pain within.
We must help it along. Thank ourselves for healing. Show our gratitude to ourselves by taking the best care we can of us....

Anyway, I hope this helps you in some way.

It will take the time it takes to trust your mind to do the work there, and allow the emotions to hold healthier feelings, to replace the loss you are feeling, for something new to feel good about instead.

Something good about you will work, or thinking about your bright future, or even a lottery win(that's a fun one I'd do occasionally), whatever you care about that can inspire you or spur you on, forward, to start replacing the hurt emotions with... to see yourself happy, loved, and on a honeymoon, or with little ones someday, and Mr. Right by your side... that's a good thought (image), rather than what you feel you have lost.

There are guided imagery cd's by, you guessed it, Bellaruth Naperstak, on overcoming such emotions, and I swear by her stuff.
She has one for grief that might help you totally! Look into it at Amazon and order one! You will be sleeping well and each day, rising happier and happier... you will!

You might want to try some Qi Gong too! It's a healing marshall Art. It works by aiding the body in making it's own medicine... is that awesome. xo

Peace and Healing Love, My Friend!