Anyone recovered from smell/taste lost?

I sustained a head injury a week ago by impacting the top front right side of my head against a wall. I have noticed in recent days changes in my sense of smell/taste which I only confirmed tonight that I have much reduced sense of both. Some smells appear different or much ‘duller’. I am now worried that things may get progressively worst and I may lose it altogether. On looking at the subject, it seems fairly grim and potentially looking at years for recovery if at all. I see experts opinion is that if it does recover then the first 6-12months is when it might. Just wondering anyone has actually recovered from this and how long it took? Just looking for some hope on the subject I guess.