Edit your website directly in the frontend.
In the WordPress backend, search for the plugin 'directedit'. Once you found it, activate it and you are done.
In theory the website should look exactly the same when you are logged in and visit the front-end. The one exception is that links in text do not work. Use CTRL click to test them, they will open in another tab.
If you want to be sure, there is a great plugin "user-switching". After you install it, in the front-end just below the log-out link you will find a new link "switch off". Click it and you will see the website as an anonymus visitor. At the bottom of the page there will be a link "switch back to admin".