Scaling out of positions and re-entry

I've been trying to refine my scaling out strategy, especially in high-volatility environments like what we've seen with $NQ recently. My issue is often getting out a portion at profit targets, only for the move to continue significantly, and then re-entering feels like chasing. I'm trying to avoid giving back too much on pullbacks, but the opportunity cost on the table is real. How do you guys manage partial exits and potential re-entry without getting whipsawed or feeling like you're missing out?