[befuddle]

My advice is this or what I feel works for me:

1. Remove all duplicate content
2. Publish even more fresh content each day that is available from your home page. Monitor when Google has indexed that content and when you start receiving traffic for it.
3. Work smarter. ie automate posts to go live on different days

Here are some recent dips of my traffic and the length of time it took to bounce back.

15th February. The site had been consistently good post-Christmas and then dipped to a low of 167 visitors. 20th February, all was fine again. 5 days.

5th March. This was the sharpest decline of all. Traffic had been increasing daily since the 20th February return, then overnight dropped to 222 visitors and hitting a low of 152 days later. 19th March the high traffic returned but only for 2 days. 2 weeks.

29th March. Traffic starts to climb. I've had dips since but they are only overnight. The lowest recorded day since is 433 visitors. 1 to 3 days.