No matter how good the future looks, change also always involves giving
something up. You might be so excited to be moving on that you may not
notice it at first. Eventually, you may find yourself feeling kind of
“blah”-not happy or sad, but something in between. You may not want to
admit it to yourself, thinking, “I should feel great.”
As you may have learned, changes in your emotions can tell you a lot. Down
feelings you have during big transitions is telling you that at some level,
you're sad to be giving up some things from your old life. This is natural.
The problem is if these feelings can get out of control and begin to cloud
your vision, you might only be able to see bad in the new situation and
good in the old one.