My daughter is home right now recovering from this which she had on Thursday afternoon. Today (Saturday)she walked about 1/2 a mile in the city without a limp or crutches or any walking aid. She walked out of the hospital at 7pm after having it done at 3pm. She is resting it most of the time but does her exercises as prescribed by the physio. She has only had to take panadol once since the operation.
I think you'll be fine as you are young too. Just do as your medical advisers tell you.