I had my left knee replaced last year and my right knee replaced on Nov 13, 24.
Do worry, it will take 6-12 months for a full recovery. I was swimming and bike riding within 6 months with my first.

Tips:
Get an ice machine- my ins paid for it.

Take your time on recovering- don’t rush

Take meds as prescribed.

Elevate and rest your knee.

PT , do a little each day and go to your appointments.

I’m 52 and am doing great 2 weeks post op.