3 years ago, I ranked 2 websites in a very hard niche, the first got a penguin 3 penalty and the second got a penguin 4 penalty. I used to rank the first website with senuke, and some PBN links. The second one was ranking using sape and PBN. But after penguin 4 it went from #2 to #23 Now I don't know what to do? Should I build a new website? Build new links to the second domain? More sape? Also GSA was working great in the past, now I can't even get any gsa links to be indexed. I feel totally lost, and depressed. Any advice will help a lot.