Rejection is arguably one of the worst feelings a human being can experience. The feeling of being broken up with, being rejected from a job, having friends cancel on you at the last minute, having your ideas shot down, and similar instances make us feel worthless, powerless, and overcome with self-doubt. Rejection is a feeling of not fitting in, not being good enough, and not being valuable to someone else. It truly sucks, and it's common for us to try to avoid it as much as we can. This leads to us avoiding certain situations that are havens for rejection (e.g. getting into relationships, interviewing, asking for help, pitching new ideas, approaching an attractive man or woman). What you should know, however, is that rejection is critical for personal and professional development.
We can't become better versions of ourselves if we don't experience rejection. Why? Because not only does rejection teach us that we are not perfect, it brings our weaknesses to the forefront. Rejection is an opportunity to self-reflect and improve ourselves. If you were denied a job, what could you have done better to increase your chances of landing it? If your startup idea was shot down by a VC, how could you have refined that idea? Better yet, who's a better person to pitch your idea to? Rejection allows us to ask the question, "What could've been better?"
Although rejection is great for self-reflection, it's important to realize that rejection is not all our fault. Sometimes we're rejected for reasons we can't control. For example, that job that you didn't get was probably put on hold, or the man or woman who refused to speak to you was probably going through tough times emotionally. Rejection can come in many forms and for different reasons. The best thing you can do is know when to look in the mirror and when to look the other way.