You should not focus and measure few keywords’ positioning as success but you should look at average keywords’ positioning improvement.
Please note that when your website affects, it doesn’t necessary affect only few pages but major your whole website. So you require looking a whole website rather certain keywords positions. And then only you can recover your whole website and save for any Google algorithm updates.
Website recovery is on-going process and generally takes 3 to 6 months or more if everything performs properly. However, as the process begins we can see incremental traffic gradually.