Hi. I'm online and happy to answer your question today.
The fucithalmic acid is to prevent infection so keep using that until your surgeon tells you not to.
It should be OK to wear you contact lens.
as to how long it would take to do the graft on your left eye, that is hard to tell. It depends on how things are progressing there etc. The best person to ask is your ophthalmologist for information/estimates on this issue.
I'm very glad to hear how well you are doing :) Please keep me informed on your progresss. Have a great day!