Calories aren’t tracking on my watch

Hi, I’ve had my Apple Watch since December and I absolutely love it although it’s never tracked my moving calories. I could do a 45 minute HITT workout and it only shows that I’ve burned 12 active calories or a 5K run and 7 active calories, which definitely isn’t accurate. Ant suggestions on how to fix it apart from unpairing my watch from my phone and checking or checking settings and the motion fitness because they are all turned on.

Thank you:)