He's your only character, right?
If so, you can drop him and start up with a new character immediately, if you'd like. No problem with that.
It happens to everyone now and again.
He is a loner, so we can't put him on NPC or hiatus status--he'll have to leave the lands. Of course, if you wanted to bring him back someday, you can always do that.
But if you wanted to drop him officially, just say so, and we'll remove him and everything. Whenever you have your new character registered and set up, feel free to start the joining process again. ^^;