I had a 70% tear of my ACL after falling over skiing (that did it partially) and then went to go horse riding - tried to haul my up onto the horse which ripped it further. Yes, ouch! I was in the USA at the time & the insurance wouldn't pay out for surgery, only physio. I had a lot of physio for about 3 months, starting in the Jan/Feb & by that spring I was playing softball although I was slightly hindered by my injury.
Once I got home I went to visit the Dr again about my knee as it wasn't completely healed - I couldn't straighten & lock my knee for several months. I had an arthroscopy in about July/August which confirmed the 70% tear & said I should really have had reconstructive surgery but by then it was too late. Recovery from the arthroscopy took a few days - that in itself was quite sore.
Does it affect me now? Not really but it happened about 12 years ago. I would be cautious skiing again although I have skied since, several times, without issue. Otherwise it is now not painful, ever. It *can* get a little swollen with fluid if I am on my feet for many hours or doing something uber extreme but really not often and never painful. I did ride while I was going through physio, however I was riding western not english & only very gently.
I'm sure you will be fine. This is a common procedure, recovery will likely take a while but I advise you really make sure you give your body the time it needs. Recovery from the arthroscopy was frustrating enough but your body will heal itself in good time. Be patient, you'll get there - it'll be uncomfortable & probably painful but it's only temporary. Good luck, keep us posted!