4.
You have a Vision, but might need to figure out the technicalites
You have your own quaint dreams and a vision! But you're struggling there with the technical terms, marketing, getting in subscribers etc. Don't worry! The biggest step is to start and you're already there! A good blog needs the best content, and your ideas will get you there. But analytics and strategies have their own knack too.
Being a free-time blogger, as time goes, you'll figure it all out on your own. But if you really would like to know the details, don't hesitate to ask for help or Google it up. A hobby can get into something big too, you never know!