I am borrowing a biblical quote today for my heading and post as it is relevant. The quote relates to preaching the gospel but is equally applicable to your business pursuits. The meaning is that you need to keep working when you are getting results and when you are not. Persistence and consistency are top business attributes.
It has been my experience hat sales come in cycles, but if you don't keep working in the down times then the sales dry up altogether.
This is particularly applicable to traffic exchange surfing and safe list posting.
Hang in there and succeed.