All stay-at-home-moms go through this feeling one time or the other. I think the key is to pursue your hobbies or interest and pick up some skill based courses that would help you earn your pocket money atleast. You should take up some work from home options or some online business and it will boost your confidence and will also keep you happy.
https://www.flexjobs.com/blog/post/10-great-work-home-jobs-stay-home-moms/
http://www.bankrate.com/finance/personal-finance/5-work-at-home-jobs-for-stay-at-home-moms-1.aspx
https://in.pinterest.com/explore/jobs-at-home/
http://www.forbes.com/sites/work-in-progress/2012/05/10/become-a-work-at-home-mom/#ffda9fab2af0
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