Only YOU can decide if you're ready. When you're ready, you'll know. Just do what you think is best for YOU. The people who love you will love & support you no matter if/when you decide to try to develop a relationship with your father. If you want to contact him, I'd say go for it, but if you want to wait until a better time, just try to be as realistic about that as possible. Try to sort out what is just your nerves & what, if anything, really makes it an inappropriate time for you.