Noes are free, you can hand out as many as you want and you’ll never run out. Yeses instead are a little more precious, you gotta use them strategically and only every so often if you want to avoid getting crushed to tin foil by the weight of the consequences.
What to say yes to? What to say no to? The most important thing is that you stop being reactive. What resonates best with your inner monologue? What part of that will get you closer to your goals? Can you survive the worst-case scenario? There you have it. Now don’t forget to leave some space for chance.