Instagram is not good for the mind. No duh. But what if it's been your main source of connection for the past 6 years? Everyone's online, everyone's in that group chat you haven't checked in a month, making plans for things you have no idea about, going places you're not invited to.
But is that really the case? Are your friends actually excluding you because you're not on Instagram? No, that's absurd. If they're your friends, which they are, they'll make the attempt to reach out and get you involved in those plans. Maybe it's not always in the most transparent ways but they will ask for you when you're not there. You're not missing anything. You're scrambling to download that answer, to satiate the people-pleasing, FOMO-feeling goblin in your mind, quick to dismiss the progress you've made so far.
Take a deep breath, and just call them. less chances of having your tone misread.