the pain that you mention, the sacrifice, leaving our conford area, are difficult things to assimilate, for the human being, to channel this, and overcome the circumstances, is what will allow us to achieve the success we desire.
There are no dreams achieved, without having sacrificed something, time, effort, family, friends, etc. There are things that must be put on a scale, and decide what is more convenient, but, for a person to be successful, he must assume that he will always have something to sacrifice to reach the goal that was established.