Creating a Instagram as introvert

So I’ve moved a lot and don’t really go out as I prefer it that way but most of my friends have had Instagram and I want to create one too but I feel like it’s late for me ( I’m 28) and I don’t want to have an account with like 20 followers…I keep beating myself up about not creating it when I was a kid but what’s done is done ..

What do you guys think should I make it or just leave it alone and if so what’s the best way to engage with people on there?