Feeling demotivated

Hi peeps. 24 M. Left ACLr only. Hamstring autograft. Surgery was done in late August 2024. It's been almost 6 months post op and still I am not able to jump or run. My surgeon told me to go slow with rehab including PT since I have more laxity in my joints. So I started PT late (after 2 months post op). Now my quads and hamstrings are really weak that I can't even do leg extensions properly. But my surgeon is now urging me to start running (sprinting actually). He is saying that it's okay to do that after 5 months post op but my PT disagrees with that saying that my quads are too weak for that. I also agree with my PT. But now I am really confused and is losing motivation as I am not getting results even after doing leg day twice a week and leg extensions 3-4 times a week. How was your experiences? How did you people stayed motivated? Please help me with this.