Grammar, one of the most frightening words in English, but it needn't be. Not everyone enjoys grammar and if you are one of the many who do not, then simply try to ignore it.
It is very important to know that
go is usually followed by
to.
It isn't very important to know that
to is a preposition.
It is very important to know that one
and one is two.
It isn't very important to know that
and is a conjunction
In my lessons and on this site I teach a lot of grammar, I just don't call it that. Learning like a child is the best way for most people to learn.
Read a story and have fun. A child learns to use words, not what the functions of the words are called. And that is how you should try to learn as well.