Something to keep in mind is that you might be able to get on a sliding scale if you meet the requirements. That way you wouldn't pay as much. Also, NAMI usually offers free group sessions for their members.

I do agree that you're projecting on to your husband. I feel that you are taking your own insecurities and imaging that your husband sees them as 10 times worse. Also, the resentment you are feeling towards him might actually be how you are feeling about yourself. I think therapy would be helpful for you to work on your self esteem and learning to love yourself. You are a good person, worthy of love and happiness. Don't let your insecurities destroy that for you.

Good luck