I feel my weakness in decision-making jeopardize my upward mobility. Any books or workshop I can leverage?
Just do it <nike>
This. It'll be hard at first but the more you do the more you'll get better. Start with low stakes decisions and work your way up. Just make it a habit
Make a decision to leave MS then you’re a better man.
Gain knowledge and experience necessary for making decisions! At the same time practice by doing.
Have not read, but these books are recommended from PersonalMBA reading list. Sources of Power: how people make decisions Smart Choices Ethics for the Real World The main problem people have with decision making is indecisiveness and I like Amazon’s concept of a 1 way or 2 way door for this to help decisiveness
Take a decision between two options and be able to defend why you chose it. But first, grow a pair.