I think you will do great...it isn't as bad as you anticipate. I had a total replacement on my left knee last June. Went to PT every day for one hr for 6 weeks...an absolute must. By the end of 6 wks the surgeon said I had the best range of motion, 118 deg, in such a short time. Surgery was done June 12th and on July 6th I went to our annual quilt show and walked for almost 2 hours without any aid. I was sewing within 2 wks for about an hour at a time, then get up and move around because of the stiffness. Within 2 months I was on my hands and knees scrubbing the floor (old fashioned, don't use mops). Good luck, hope you have a speedy recovery.