I sprained my ankle on February 3rd of this year.
Spent a week resting, with it elevated, compressed and iced.
On the seventh day, feeling rested I thought I'd venture out.
3 x 5 minute walks between bus rides and a couple of shop visits, and I f*cked it up royally - the following day my leg had swollen half way up my calf.
Too much too soon.
Saw my GP, she referred me to the physio in hospital, where I have been having treatment every four weeks since then.
It was the beginning of May, that for the first time I felt able to get back on the bike.
I'm still only doing alternate days - but that is more to do with my @rse being out of condition than anything else.
Monday of this week, I had a physio session.
It is the first one I've had where I have felt 'Oh, we're actually making some progress now'
My next appointment has now been moved from a four week, to a six week interval.
ETA - given your age, you should recover in less time that it has taken me to do so.