Review or Blog?

Now this post is a bit strange, The thing is i have no fucking clue if i should be a review site or a blog site i literally have no clue what a blog is and no clue if a review would fit in the category of blogs. Now reviews are something i have really really really want to do i would mainly focus on gaming reviews so if your not a gamer leave now i have no need of anyone calling me a nolife because i review games as a hobby. Now this whole 'blog' thing is probably going to be ditched soon, maybe even today, because I don't know what blogs really are. I sort of think blogs are someone writing what is going on in there life and just plain talking about whats on their mind. Now in my opinion that whole concept sounds so fucking stupid I literally think that whole idea is pointless. Now keep in mind that i have no idea what blogs really are so don't start hating because I described them wrong and then proceeded to talk shit about them. Now please leave in the comments what a blog is and if I should switch my blogs to reviews, keep doing blogs, or do both, or if reviews happen to be considered blogs then i'll stay a blog site but only do reviews. I will see you guys soon.