S.T.
Please relax and go enjoy a much deserved vacation. It doesn't happen very often...so be so grateful that you have wonderful family that you trust to help you with your kids. Many people don't! We would go to my grandparents every summer for a week while my parents would go do something fun. It made me closer to my Grandparents and it teaches some independence too! Relax, enjoy and kick it up! Your girlfriends will enjoy your company more too if you aren't worrying the whole time.