If you'd like to create a new account, you may do so. But I would advise you to request a Self-Requested ban on the account you wish to no longer use, in order to remove any temptation or possibility of account interaction (which will get you banned).
If you are having trouble creating a new account on your own, you could post another dispute here requesting an SRB on your current account, and requesting a new account be created using the format in the stickies.