Small wedding

Hello, so I’ve never posted on here but I’ve been feeling something is missing and I’m not sure what.
Background, I am getting married in 4 months and most things are organised, we are having a very small wedding of 50 guests as OH has fallen out with his family and most of my half is family and a few friends where as his is mostly friends.
I have booked a violinist for the ceremony & drinks And have booked a DJ for the night but I feel like something is missing. As majority of my side are elderly and the majority of his side are young I’m panicking thinking everyone will just be sat waiting for the night to be over.
Any suggestions??