Hi Ruth, you really can do this. I interviewed a mom who writes for a living here and talks about the struggles with raising kids at the same time, you can read her article here https://triedandtruemomjobs.com/become-freelance-writer/. Us moms really have super powers, you can totally do this. Just have to find the right balance, I definitely recommend reading the above article.
Hands down I’d say the best thing you can do is research 1 primary keyword, craft an enticing article title that includes your keyword (though it doesn’t have to be an exact match), spend time writing your search engine snippets (SEO titles/meta descriptions), and by far the most important is making your content as VALUABLE as possible through videos, nice graphics, table of contents, bold/colors/styling, etc. Small things like keyword density barely matter.
Once you have the affiliate links you need, it is time to present them to your audience. As you start using affiliate marketing to talk about products, you need to be aware of how your audience perceives you. If your website appears to be only after their money through an overwhelming amount of affiliate links, then they are more likely to simply leave your site.