I Need Advice - Can Anyone Help?

Hi WA family,

We are all aware of health sites been penalized by Google and that is nearly impossible to rank if you are not an expert or authority but even authorities who are for so many years in that field are penalized.
I have a health-related website who is 21 months old and I am of course affected. I still rank for some terms but I am on 10-20 visitors per day which is crazy.
I am in doubt what to do, should I sell my website, should I continue to work on it? Should I start everything from scratch?
I really don't know which direction to choose. If I give up on this site that means all I did was in vain for 20 months, I know that big authorities also lost their money and business but still.
If I start from scratch that means months and months of the same hard work for Google to recognize me, to rank me, etc.

I think that most easy decision is to give up but I don't want to do that.

Can anyone advice me what is the best decision to make in this case?

Thank you all in advance.

Dani