Fear of something is at the root of hate for others, and hate within will eventually destroy the hater.
If we get our self-esteem from superficial places, from our popularity, appearance, business success, financial situation, health, any of these, we will be disappointed, because no one can guarantee that we'll have them tomorrow.
I've done a lot of things and I've been a lot of people, but now I've come to realize who I am.