Instagram Story Video

Hi everyone,

I am very new here and a beginner.
I am looking for a template for Instagram Stories where I can insert a small video clip. taken as a screenvideo of my phone, showing how to turn on all notifications on my Instagram channel.
This clip was taken by me from my phone as a screen video, showing how to turn on all notifications on my Instagram Channel.
It’s basically a Instagram promotion, but with my own video showing how to subscribe…
I wanna make it look nice an professional.