Sorry you are here... I know that I really struggled with feeling my marriage of 8 years was a lie. There are people here who are a few steps ahead of you.
One thing I will say if be patient with yourself, its OK not to be OK. It is OK to cry to be angry / sad and everything else.
Find someone you can talk to a friend, a parent, a sibling, people are more supportive than you might think at first. Talk to them, if you want to vent come here tell us whats happening, knowing that others went through this does not take away the pain but it DOES help to know that others got through it, many found real love and happiness at the other end, being able to REALLY appreciate it when they find it.