Respect yourself enough to walk away from anything that no longer serves you, grows you, or makes you happy.
The purpose of life is to grow. The purpose of everyone is to do more. And the purpose of everything is to keep improving.
Things are changing no matter what, therefore the key is to continue to improve.
Truly, you will be replaced by something better. So before something better replace you, you must continue to learn, and try your very best to make a difference in this world.
It is not about the money, money will just be the indicator of how well your undertakings is performing. Most importantly is your role towards the whole world, which will be defined only by yourself!