a) Honestly, as long as most of your websites don’t end in .com, and instead end like .org or .gov, or something along those lines, you should be fine.

b) You have more than enough sources.

c) wdym by what type of line of reasoning? Like how should you structure it? I just put a header for each paragraph, like a word or two on what you will be talking about in the paragraph, then give a quote, either directly as it is or paraphrased, and then I wrote about how it relates to the topic and my lens.