The VA loan was not set up to be multiple use friendly. With each time you use it your funding fee goes up significantly. Make sure your previous VA loan was paid off and make sure that your mortgage lender knows that you've had a previous VA mortgage. You will be limited to whatever your benefits allow for your loan amount.
I have a lender that can offer prior military a loan with only a 1.75% funding fee which is less than the funding fee on VA loans. If you would like for me to give you her contact information, please email me at firstname.lastname@example.org
I would also like the opportunity to help you find your next home. I look forward to meeting with you soon.
If your previous VA mortgage is paid off, then you have eligibility for another. You just need to go on VA's web site for another eligibility certificate. You will need to use a lender that knows VA mortgages.