Emily, I was once where you are now. You have to stop feeding your need: your need for people to respond to your hurt. This hunger you have for a response from others will never be satisfied, it will just grow more hungry. It's BDP that makes you this way.
BDP is survivable and life can get better, but it will not happen magically on it's own. Psychological help is the only way.
People on IG or just around you in daily life will never give you the responses and support you truly crave, and you will always be hurting until you do something for yourself.
You can escape from this painful existence Emily, just reach out for medical and psychological help.
I still have the scars on my arms to remind me how desperate I once was. Instagram is a waste of your time and is only feeding your pain. Have the strength to leave it.