Please do not use special text. You do not need to write in giant, bold, colored letters. None at all. The default font, size, and color is fine, and recommended. Special fonts and colors are for emphasis only, they DO NOT look good in excess, nor do they look good when it's a rainbow pile of messy fonts and styles. They only annoy people, and make it less likely that you will receive help for your issue.
Regarding your original question, if you want to change your name, you don't need yo make a new account. You only have to change your name in forums, and make a rank transfer request in the proper section to get your in game rank transferred to your new in game name.