Sometimes in life you have to start over.  It could be from a divorce, going back to school, making the transition from one career to another or when stay in the same profession and just change companies. Change and starting over is stressful and regardless of the transition, you wil doubt yourself and your abilities.  

I have never personally experienced divorce in my life.  Parents are still together 40+ years and I have been with the same woman for over 14.  I have had friends go through it and I have seen the toll it takes on them physically and mentally.  I graduated college in 97 and have no plans on going back Billy Maddison stlye (Oh Veronica Vaughn). For the exception of trying to dabble in a few other things before radio, I have never really changed professions.  Titles yes, but all within the realm of things that pertain to radio and business.  I have however changed companies and that is difficult at any level.

You climb as far up the ladder as you can, only to realize that there is not another "rung" for you where you are at. So you take a look around and see what's available at another company. You apply, they hire you and you find yourself climbing again, but this time your starting point is different.  You start to wonder if the grass is really greener and which company conducted business better-your old company or your new company.  Chances are there are great things about both.  Even though the new company has a different system and new techniques, doesn't mean you can't inject things that were great about the old company.  Regardless of the business model, all successful companies make room for good ideas. Just make sure that these are good practices and not just things of "comfort". 

Meaning, are you hanging onto these techniques and practices because they are familiar to you.  Be careful not to constantly remind people where you came from and how they did it "better". There will always be things that the last job or company did better, but make sure to decipher between "better" and "comfort".  It's healthy to remove yourself from what you feel is comfortable and safe.  In order to grow and change, you have to remain open minded and understand that there might be 1000 ways to do it right.  Remember you left the old company to GROW not just to repeat the same process you did with your new company.  Even in situations where you were hired to turn things around and fix the place, you have to remain open minded and be able to merge all of the "good" together.