Give this a go for a day. Or maybe an hour. Do a week and really see the difference.
Every time you are faced with a request to do something, either from yourself or from someone else, think and respond with "Yes if...."
Shall I go to the gym today - yes if i make time in my diary now.
Can you finish that report early - yes if you help me prioritise my work.
Will you close that big deal this week - yes if we get the commercials signed off
Yes because has options, puts you in control and frames responsibility.
No beacause has no future. It's a dead stop.