In order to make a withdrawal from your account click on your Avatar in the top right hand corner of the screen and select 'My Account':
Next, Select the 'Cash Out' Toggle
You will then be requested to specify the amount you would like to withdraw. Select the amount you wish to withdraw and click on submit.
If you are withdrawing for the first time you will be presented with the following screen:
*Note: Only users who resides in USA can receive ACH as withdrawal method will see 'Proof of Banking'.
This means that your account has not yet been verified.
Should you wish to find out more on what is needed for verifying your account, please see the following article: What documents do I have to submit for account verification and how.