My bedroom ceiling needs to be plastered in a bad way. I'm the one who has to do it, it is something I have never done before and need some advice as well as instructions on how to. It is very badly cracked in a lot of places. Also, let me add that I cannot afford to re plaster the whole ceiling which is what I have been told I should do. So, the next best thing is for me to repair it. Any help you can give me will be appreciated.