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.