1) Be sure to browse around the Help! It has useful information for new users such as yourself. It even gives a few starting strategies that you might like to try out.
2) No matter how much you think you've screwed up, never ever (ever) make another account. You can make another character under this account, but you may not sign up for Carnage Blender again using a different e-mail. That being said, you can also change your name on this account.
3) Make good use of the "(get more)" link next to your BA. It's free for you right now, and it will help you get farther in the game faster. We also have special times where you can get extra Money or XP rewards when fighting during that time. This is explained here...
Other than that, look around, check out chat, make some new friends, try different things and most of all, have fun ^_^ Welcome to CB!!