It’s a mistake I see ALL the time. Use your content to make more content. Shooting a promo? Do a BTS. Making something cool? Do a BTS. Filming an event? Do a timelapse. Filming ANYTHING, attach a GoPro and get a POV shot.
Nothing should be single use, and everything has an angle. People love the education and or curiosity of finding out more and how.
Use that, and watch the views roll in.
…and if you can also use one of the many many influencers who already have the audience or people interested in that and can make that content for you…let them. And enjoy hitting a whole new fan base alongside.