When you only score 5 diamonds and no matter what you do, you can not add anything to make your avatar any more powerful. You can spend coins, credits, or use up all your stamina and no matter what you do, the only thing you can do is sit back and wait for time to bring you back up to speed. Of course this means, all the people you have defeated before hand, pass you by and of course, the next time they see you, they are kicking your butt .. yeah it happens, if you don't shell out the cash like some people do. I can not afford to do anything but let time heal all wounds.