Seeking a profile evaluation

Hi there,

I am applying to do a phd in business management at Mannheim, however after taking my first CAT (410) I am doubting myself somewhat, I am curious as to if the rest of my profile stacks up.

I am 27 years old with 12 months Work experience as an entrepreneur. I run a part time business buying and selling bullion/coins all over the world, whilst I have chosen to keep it part time my turnover for the first year was 125k with a 10% margin. I do work a menial job on top but it is of no relevance.

My education is as follows:
BA Business Administration from Portsmouth University: GPA:3.2 - I spent a 6 month stint in Sweden as part of my course
MA Advanced International Business Management, a dual award from Both Newcastle Business School and The university of Groningen in The Netherlands : GPA: 3.56 - I spent 9 months in in The Netherlands over 2 occasions

My Master thesis achieved a grade of 75% and I intend on turning it into a Doctoral thesis. My area of interest is manifestations of culture within corporate social responsibility documents. My master thesis developed new theories which I want to take further.

I also have 3 months living experience in Germany and have travelled Japan.

The GMAT is really putting me off applying. In the UK we don't really test this way and I only have a month until my exam. Is it just a mental thing or is the GMAT really that important when stacked up against my 'cv'

Any response would be appreciated,

Shaun