Hi,
When I reverted to Islam over 26 years ago, I was very keen to change everything in my life to reflect my new beliefs. So I chose the name Aisha, which I was told was the name of the Prophet Mohammed's (peace be upon him) beloved wife. I changed it on all my official documents (passport, NHS etc), but it was only on a "known as" basis. Then I started having problems with identity, as my old name is on my school/university certificates, so I've reverted to using my birth name for official purposes, but friends all call me Aisha. I think it's important though, not to hurt our parents by simply saying from now on I'm called "so and so", which was the mistake I made, and it's not compulsory to change your name, as long as it's not offensive to Islam.
Islam is reflected in the faith and actions of a believer, not in his/her name, although having a Muslim (not necessarily an Arabic) name identifies one as a Muslim in society. Usually, one is proud to be Muslim and would like it to show in every aspect of life, even the name people call us by.
At this stage, I would advise you to think about the fundamentals of Islam, rather than concentrating on details which will come naturally once Islam enters your heart.......I pray that Allah guides us all to His perfect religion and that Muslims all over the world, be they Arabs or not, practice the true teachings of Islam and do not get overwhelmed and divided by issues such as names, nationalities, languages, etc.
Wallahu aalem (and only Allah knows best)
Salem (peace).