Activity not tracking on Apple Watch

Why is my Apple Watch SE not tracking my activity properly? It says that it takes one minute of normal walk with your heads hanging regularly to count as an hour of stand. Why is it that after 15 minutes of vacuuming it still looks like I am sitting? Or why when my boyfriend and I both having apple watches go for a walk his exercise ring starts counting and mine stays the same? I have read and followed all the instructions to calibrate my watch with no luck. For what’s worth I am very disappointed at Apple’s fitness tracking capabilities.. anyone else feel the same?