How to find right size for wetsuit?!!

I am new to the surfing world. I have not dipped my toes in the water yet and don't even own a wetsuit or anything. I figured joining this site before I try to actually get out there to catch waves would be smart on my end. But I have looked at wetsuits/springsuits and found that the sizing can be very confusing. I stand at 5'1 but the difficult issue is that I have a larger chest than it seems they figure I should have. Full D cups. How can I find something that fits comfy? Are there certain brands that might be more forgiving to women? I weigh at 120. 30 years old. Ha ha...thanks for your help in advance. And I am also open to learning anything that a beginner like me needs to know. =]