It is a very good idea to use different product promotion strategies so you can figure out what is working and what is not. Try to do split testing and measure the performance of each campaign then take actions accordingly. Changing a few things here and there can increase your profit dramatically. Make sure to place the banner ads on different areas of your site’s pages. Some positions will make the ads more noticeable than others.
Once you’re financially stable, I hope you start giving back. It feels good and people like the idea of supporting a good cause (they will be more likely to click your affiliate link in your disclaimer). This also means you don’t have to use as many links in your content and risk getting a penalized. Last year I donated $3,000 to Red Cross At Hurricane Harvey.
Creating blog content is a very useful and effective way of consistently building content on a site. When creating blog posts, it's a good idea to do some keyword research to figure out what it is that your audience is interested in and searching for online. Also, be sure to research competitors, forums and social media to narrow down on topics for your blog. 
This domain can work for people in two ways. One is to get sudden bursts of income by selling a certain product. The second part is selling a service that gives you recurring fees. This course on Affiliate Marketing Strategy for Stable and Recurring Income can be very helpful if your objective is the latter. At 5.5 hours and 56 lectures, this is very extensive and useful for those looking at mastering this subject. This training program is developed by iMarket XL and Max Stryker.
Thanks Nathalie! And glad to see you came over from AONC 🙂 When done the right way I think affiliate links in context are much less intrusive and offensive than having ads on your sidebar. The average non-tech reader probably wont even know its an affiliate link anyway. So just by doing everything you’ve already been doing, you can switch out links, and probably make a nice side income!