We are never really rejected. There are no true mistakes. No could haves that really "could have been." No should haves that you really "should have been part of" Everything that happens or doesn't- comes along or is an opportunity missed because it simply needs to be. Fall-backs are crucial parts of the puzzle which is understanding. Not getting what we want can be a huge step towards reaching a bigger dream...or walking the path meant for us. We’re not rejected. We’re redirected. There are no parallels or alternatives, we can not force the "hand of fate"... There's only this as it is.
I often tell people who ask me... -Take the path of least resistance. By this I don't mean to take the easy way every time, I'm really saying when hard work feels good it will pay off. When dreams, goals, plans, people, and the day to day flow and provide for themselves within your life equally as much as you strive to provide them for yourself then, they are yours to have.
Strain, stress, anxiety, tension- those things are for no one. Those emotions are indicators manifesting themselves because your internal compass is off, you're not heading true North, somewhere you've forced a wrong turn. Stay the course, trust the source. Happiness>Everything.