There is a health warning with these activities as they could bring up deeply personal memories, emotions, feelings and responses.
I offer a different kind of health warning having persevered with this over the last few weeks: be prepared to wake up several times a night wondering 'what on earth was that all about?'
Having got my head to alert me to dreams and bring me into a state of semi-consciousness I am now able to remember anything (so far) between one and three dreams every night. I haven't the time, energy or circumstances to deal with any of them. To do one justice I would give each two hours, this is a combination of getting the detail down then working through a set of 27 questions to analyse what it means directly to you, your circumstances, the problem or problems, feelings, anxieties and so on.
I'm still recalling a dream from two nights ago! Vivid not for where I was , what I was doing or who I was with, but how it in the way you get from watching a movie I came away feeling x, y & z from the protagonist.