Hey. Yes you can use just one website to promote multiple affiliate programs, but I’d say that your website should focus on just one niche. So you mention, SellHealth, that would lead me to believe your site is about health and fitness. I would then advise you to stick to that niche rather than promoting unrelated products like dog leashes and fashion accessories.
Michael, there are literally hundreds of thousands of niches and sub niches. So it really is hard for me to pinpoint one for you. If you are just starting with ClickBank (or affiliate marketing in general) I’d find a very small niche, preferably one that you have some experience with or know a little about. That last part is not necessary but it helps you keep going in the beginning when it’s hard to see any success.
Although some online and technical colleges offer degree programs in web design, many of the skills you need can be self-taught. However, there are some technical design elements that you’ll need to learn and can help you stand out. Before investing thousands in a degree program, you may want to check out some of the web design courses on Udemy instead.
The products and services you will be promoting to your audience must be relevant and good quality. Make sure you believe in them and know everything about them, because this will be crucial to you delivering the sales pitch to your audience. You need to build trust with your audience so make sure the products and services you choose to promote are trustworthy enough.