First year newbie coach question. How many times can a team go through a Skills challenge and can they do both the autonomous and driver control?
3 times for each per tournament. You can use as many of the 3 attempts as you want but the max is 3 per auton and 3 per driver. Your highest scores for each are added up for your total skills score.
To add some context and officialness to clanker’s answer, you’ll find this in rule T15 of the game manual.