Just did my MRI and my experience of facing the injury is exactly the same. Will update when my sports surgeon is back.
Otherwise, walking with a limp now and can't fully extend the knee.

I think you should seek treatment sooner, as far as i've read up and seeked opinion from the hospital;
meniscus injury can cause locking of knee
typically is when you are unable to fully extend or flex your knee when pain is minimal.
and for younger people, the prognosis and speed of recovery is better, in terms of repairing meniscus first.
ACL is a different thing; means that you can repair meniscus, then only ACL.
ACL won't heal on it own.
The giveaway you are feeling; im having it too; the way to reduce it is by wearing a good brace.
But if your knee won't straighthen, won't you walk with a limp?

private?
as long as you are ready to sacrifice your tendon knowing the complications thereafter
do you still have problems with stability? such as while walking/jogging feeling a give away?