IMO,
Don't use your personal name for your website, since your name is not known similarly to any other name you may use to build your own brand, then I advise you to use a catchy, short, memorable, and most important to avoid the mis-spelling possibility, myself will wonder if I heard your site name how it's written, whether Mohamed/muhamed/mohammed/mohamad/ and the same thing with Yahia/yahya/yehia.
Also, it's very easy for anybody else to change any letter in the name and acquire a similar domain name.
Another reason is if you thought of selling it one day, just think if its personal name would be better or if it's a catchy name is better.