Getting to ZERO is job one.
Getting to at *least* 110 degrees is job two.
Working on single leg balance is job three.
Do not be in a rush to get off the pain meds - better to need more pain meds and make more progress...
Do not rush the PT either, as simple healing does take time.
Listen to your PT DR and Ortho...
And lastly (most important too), always guard against falling - right now, a fall *could* tear everything apart.
You will get there~! Time is your secret weapon~!
The stronger your 'quads' are, the better the knee will be, the stronger the 'quads' get, the better the knee will stay - and the lower your pain will be.
Learn to tighten your quads throughout your day. Make it a life habit. When bored, tighten the quads, when watching TV, tighten the quads. At a movie? Tighten the quads. Number 1 most effective thing you can ever do for your knees - ask your Docs - no such thing as 'too tight'.