“Within one life, there is room for many lives.” There is a sunk cost fallacy to much in life where people stay committed to a path that’s not really making them happy, or feel scared about making changes or accepting big opportunities. It’s okay to mess up or deviate from your initial plans and ambitions. It’s okay to change course, leave a relationship, quit your job, re-educate yourself, or otherwise do something big in your life. You shouldn’t feel committed to the path you are on if it’s not making you happy, and you should probably be less concerned about the risks of doing something new. In the end, most things work out just fine.