Fear of missing out (FoMO) is a unique term introduced in 2004 to describe a phenomenon observed on social networking sites. FoMO includes two processes; firstly, perception of missing out, followed up with a compulsive behavior to maintain these social connections.
Hadda look it up.
I don't suffer from FoMO.
My life is full of rich and interesting things on its own and do not require social networking to boost my self-esteem.
If you suffer from FoMO you may want to examine your real life and take pleasure in it. Being comfortable with yourself is a very important step in building healthy self-esteem.
Eventually, you might find you need social networking less and less as you progress.
Good luck