I have been a professional photographer for about 4 years now, and have been taking photos as a side deal for about 8 before that.
My best piece of advice for you is that you need to know how to take criticism very well because there is a lot of it in the business. And a lot of it isn't very nice either.
It is a VERY tough market to break into and my best suggestion is to gt someone beside family or friends to critique your work for you and also if you can find a photographer in your area who you can intern with.
If you would like other tips or help feel free to pm me.
The wind of heaven is that which blows between a horse's ears. ~Arabian Proverb