I haven't done it much lately, but in the past when I had trouble falling asleep, I would repeat these affirmations over and over in my head. It got so that I couldn't even get through them two or three times before falling asleep. At first glance they didn't make any sense to me, but after I paid attention to the words, I realized they were right on target.
Here are my affirmations for Virgo:
I accept that I am doing exactly what I need to be doing at all
times. I find peace in knowing that this is so.
I know that I am a good and decent person who is getting better all the
time. I allow myself to relax into this knowledge.
There is unlimited love for me which is unconditional and perfect. I
accept its presence and know that it is now revealed to me.
Follow the link to find your own affirmations. Try it for a week. It can't hurt!