According to freud, the preconscious level of consciousness would be used to

According to Freud, the preconscious mind represents the moods and views that a person is unmindful of.  It is like a storage area where these feelings and thoughts would be kept until the need for it arises. An example of this when you have the telephone number of your friend in your mind, then when you need to call your friend, you come up with his number. 

Who it was like back then

Yes you can but you need to figure out your time of your work like make a plan for what you need to do.