After I reread it it sounded very comlicated to me but your smart and will be able to do it ;-;

Then if you decide you wanna change your look on your saved avitar then press your avitar to dress as it then change it and press Update (your name)

Then after you change your look and wanna change back go to that slot again and press your avitar

And press save*

And put in the name of your avitar and save