We all get to a place in life where we are comfortable. It's easier to stick with what you know than to try something new.
You've been there, we all have! It is human nature to resist change. Think of all the analogies there are "rather the devil you know...", "bury your head in the sand..", "it's only temporary..", "this too shall pass...". You get the point!
If you do the same thing how can the result ever be different?
Make the change! Chase your dreams, live the life you want to live, doing what you really want to do.