One thing to know off the bat is that even college and NBA starters get benched. It happens at every level, so don’t take it personally. Just because you start for your team does not mean you deserve any amount of minutes, you have to earn it night in and night out. If you do put in the work and get benched, it’s most likely due to two reasons.
First, you might just be having a bad night. There are going to be some games that don’t go your way, and the coach might notice it.
The other reason you might get benched is because your teammate is having a great night. In that instance, be happy for them and support them from the bench. It should always be about winning.