If you think you need bereavement conselling Momcj, then you do. I lost my dad in 1979 when I was in my twenties and there's still not a day goes by that I don't think of him. The death of someone so close is not something to get over, but it is something you do eventually get through, the first year is the worst, and the pain will ease as time passes. My own thoughts are that you should start by seeing your GP and telling him/her just what you've told us and see if you can perhaps have something (short term) to get your sleeping patterns settled down, and find out about bereavement counselling - try Cruse Bereavement Care (www.crusebereavementcare.org.uk)
and see how you get on. Meantime, if you feel like a good cry sweetie, you go on and have one. Trust me things will get a bit easier, it just takes time that's all.