At 5 months, I am very careful in shower. Still have uncomfort when bending knee but not paranoid about the ROM anymore...see improvements each day but definitely not great # like others...but I can do what I need to do and expect slow improvements. I did a lot of self talk to just take each day one at a time. I know how you feel. Try to not over analyze and don't force yourself to do things.
Like I said, I am 5 months and still feel it is early days for me.