There are all kinds of grief. Loss of job,relationships, loss of limb,loss of our dreams. They are valid and you don't need to feel silly about them.I thought I read somewhere that grief can take 5-7 years for a woman and roughly 5 for a man or maybe its the reverse but anyway it took me about 5. I did date etc. but never realised at first that I wasn't over it. You'll be ready when your ready but in the meantime go have some fun.