I would recommend using one of the meta cars for starters, Fennec, Octane, Dominus. Also work on boost management. You can practice moving without the ball and get supersonic speed without having to use all your boost after getting a full charge. That last play after the kick off you had zero boost if you had drove into some small pads you might have had a little bit more power in that shot to avoid the overtime loss. Also learning when to challenge the ball aggressively and defensively, had you been more aggressive instead of waiting for the ball to land before challenging you might of got a better touch on it. As your mechanics get better and you learn to hit aerial shots you’ll improve your challenges on the ball.
Have you figured it out yet im also having the same problem and im trying to do a challenge ik the code for it is 72559 but i cant interact with the keypad