How do I know which deals are actually worth my time?

You call it being selective. Look closer — half the time it's hope dressed up as strategy. You keep a deal alive because walking away feels like admitting you wasted weeks on it. That's not judgment. That's pride protecting itself. Time is the one thing you cannot get back once it's spent. Every hour you give to a deal that will never close is an hour stolen from one that might. You already sense which deals are dying. You just haven't said it out loud. The fix isn't a better filter. You have one already — you're just afraid to use it. Use it today, on every deal you're carrying.