What are your thoughts on physical therapy

>Sent my knee to snap city doing bjj
>Had to get acl surgery using patella tendon to fix
>3 weeks post op, leg is constantly swollen, can barely bend knee when its swollen
>When the swelling is down i can break 90°
>Hurr durr gotta go to physical therapy
>5 minutes of thigh flexing
>5 minutes of calf raises
>5 minutes of exercise bike
> 5 minutes of sliding my leg open and closed on a slippery board
>5 minutes of shocking the shit outta my thigh
>5 minutes of the physical therapist trying to bend my leg after its swollen as shit from all the meme shit we just did
>Never works
>5 minutes icing
>"Great job anon! Lets get you scheduled for your next 2 visits!"

Been 3 times now and I'm convinced this shit is a meme, or at the very least only good for old people who do fuck all anyway, anyone have any reasons i should keep going vs just doing mobility stuff at the gym