Speaking is the first step for any English learner. So if you are a novice at English, please focus on your speaking and listening skills prior to studying grammar. After being able to speak English fluently, you will realize how much easier grammar is. But it does not work the other way around.
Your grammar does not have to be perfect. If you process grammar rules in your head every time you speak, you will not look natural or fluent. If you study too much grammar this would happen.