I think my boyfriend is the most boring person I know.
What about him is boring?
I am not interested in his hobbies, he talks about the same shit over and over again. I feel like he's never excited or happy about anything.
You don't seem to like your boyfriend very much. You don't have to love all of the same things, but it's good to have some things in common. Consider whether it makes sense to be in this relationship.
I'm happy despite him being boring. I don't need advice.
Being bored with someone could start all kinds of drama. Make sure you really love him before you think you're happy. It sounds like you are not totally.