The beauty of the art of Self-Rejection is that it is so easy. You only need yourself and the dream of something inside of your head. They are your paint and your canvas. Like an infant sitting in a highchair eating spaghetti, it is possible to create a beautifully horrible landscape of all of the things that could go wrong. You will be laughed at, shunned, ignored, or defeated. And there it is inside of your head, a masterpiece of nothing. Nothing real at least.
On the other hand, in the real world you can chance real rejection. Perhaps you do get laughed at, shunned, ignored or defeated but maybe you succeed.
The road of self-rejection always leads to regret. The road of taking the chance could lead anywhere but you have to travel it to find out.