New to blogging,help!

  So I have just started my blog as you can see and I have no idea how to do anything I don't know how to link anything into a blog I even got an app that helps but it doesn't really explain how to do stuff my main issue is posting links but also how can I get my blog to get more views and comments I know subject matter is obviously me way but other than that I don't know how to promote also I can't figure out how to add a pin to Pinterest on my blog so if anyone can help out with that that would be awesome! I like to write about all kinds of different things like crafting married life kids life in general and soon maybe even a bit of my opinion on politics  now should I create different blogs for this or should I stick to one and keep it simple also is it okay to offer things for sale on a blog? And does that work if it is okay? I'm sure I will think of other stuff but I believe I have hit on most of my issues at the moment if anyone has any answers or suggestions feel free to comment it would really help me out thanks t.t.f.n.