While your left hand is busy learning chords, your right hand has its own job to get the hang of: creating a sense of rhythm with strumming! This can be a subtly tricky aspect of learning guitar, but the possibilities and fun-to-be-had are bountiful, once you get over the hump. Here's a guide to get you started.
While I do teach strumming patterns per each song lesson I make, I've also made some additional videos (shown below) where I do a deep-dive into certain strumming techniques, as demonstrated in those songs. Here's a few examples.