Set a target of how long you want to spend each day, say 1 hour. Then divide your topics up into content you think you can cover in on hour, and then add these 1 hour bocks into each day This will save you having to decide what your going to revise each day and will hopefully make it more manageable so that you stick to it. In terms of how to revise i'd say use the spec and make really concise notes from a revision guide so that you have all the content down then start past papers if you want.