@McBp,
It would be good if you could find a resource like this in your area (this one is in NYC).
http://www.centerforbereavement.com/?gclid=CO6Mgcu4xccCFYIXHwodhpkDKg
You might consider contacting them and asking them for an appropriate bereavement/grief counseling service where you live. I think they might be a good referral source.
Often these programs are found in the outpatient services of hospitals, or through hospices, and sometimes through affiliation with religious groups.
You need to look for a group with some focus on the loss of a parent in adulthood, as opposed to loss of a spouse or child or sibling, etc. You should be able to find one. I'd start by checking out what your local hospitals or hospice programs might have available.
Everyone I've ever known who has attended bereavement/grief counseling groups has found them useful and helpful. You just need to find the right one for you. I'm sure your father would have wanted you to continue your life as fully and as satisfactorily as possible, and, right now, you need to find a place where you can talk about his loss with honest emotions and without "putting on a front." I hope you find a place like that soon.