Mentality in games

Hello,
Do you have any tips/drills for players who are good at making layups/shots in practices but tend to miss a lot more in game situations?It seems to be a bit of panic in game situations, not a lack of skills or practice.
Thank you!

Make it harder in practice than it will be in a game and EXPECT them to make the layup/shot anyway. For layups, it can be simple as having a coach slap some wrists or bump them all the way to getting a blocking pad from the football team. Make your practices competitive with consequences for the losers.

Use small sided games and competitive drills to help with this:
https://www.breakthroughbasketball.com/fundamentals/layups-3tips.html