Here’s Neil Patel doing for a different vertical [1]. That article and the commenters from there can take you a long way. FWIW, don’t jump on to these things without following the links and spending a month or more researching. Writing is hard. And you have to produce around 4-10 pieces of audience intended content every month.
When we started, we didn’t care about the traffic. We did it because we loved it.
Content updating happens every year or during vacations when we get bored or when we learn a new technique. For example, when we learned that good photographs increase the CTR by 10x, my wife started learning photography. When we learned that Pinterest optimized vertical images get 5x+ CTR [2], we implemented that a year back. There are many Facebook groups for these discussions.
[1] https://www.quicksprout.com/2015/05/11/how-im-going-to-achie... [2] https://in.pinterest.com/pin/527554543833038696/