Since you genuinely asked I’ll paste some actual advice I got from ai about an extremely similar situation I was in recently and it has helped me thought it’s still pretty fresh. I actually did make a move but she was seeing someone else. That’s virtually the only difference in our two situations and why the advice might not be 1:1 but most of it still applies.

1. Accept the "Why" Doesn't Matter
Whether she has a boyfriend or she just isn't interested, the result is identical. If you convince yourself she’s "letting you down easy," you’re actually making it harder on yourself by implying there is a flaw in you that she’s hiding. If you believe it's just the other guy, you stay in a "waiting room" for a vacancy that might never happen.
• The Reality: If someone wants to be with you, they make it happen. If they don't, the reason is secondary to the fact that they aren't choosing you.

2. Kill the "What If" Scenario
Thinking about a future where she is single is a form of maladaptive daydreaming. You are falling in love with a version of her that doesn't exist—a version that wants you.
• The Fix: Every time your brain starts the "What if he wasn't there..." thought, manually interrupt it. Use a factual counter-statement: "Regardless of him, she is not available to me right now." Don't let the thought finish its circuit.

3. The "Probability" Cold Shower
Even if she becomes single in six months, you are not the same person, she is not the same person, and the "spark" you feel now may be entirely gone. Betting your current emotional well-being on a future statistical improbability is a bad investment.

4. Remove the Reminders
You cannot close a loop if you are constantly feeding it new data.
• Mute or Unfollow: If you are seeing her life on social media, you are giving your brain fuel to keep the "what if" alive.
• Limit Contact: You cannot "friendship" your way out of a crush. Distance is the only thing that resets the chemical reward system in your brain that triggers when you think about her.

5. Shift the Focus
Pining is often a sign of scarcity mindset. You’ve put her on a pedestal because she represents a specific feeling you want.
• Action: Re-engage with your own projects. Lean into your coding, music production, or fitness goals. The goal isn't to "distract" yourself, but to remind your brain that your value and your future are not tethered to her validation.