If you are new to Ethen read our set of basic guides on how to connect your wallet to the exchange, or create a new one. 
https://medium.com/@ethen_market/how-to-connect-a-wallet-to-ethen-d62f684bba35
https://medium.com/@ethen_market/how-to-create-a-new-wallet-on-ethen-c67b988f3e6e
https://medium.com/@ethen_market/how-to-install-and-use-metamask-on-ethen-eebc3a41ad40