Don't take the experiences of others on here as typical, the people doing great etc tend not to post much or at all as they're off living their lives and not posting on forums! So don't freak if you only hear horror stories looking on the net, its a bit biased!
Look at my post count and membership date - I joined after my 3rd flare I think it was and had had 5 years in remission from diagnosis to join up date! I'm in remission now but just like to come here and see how people are or if I can help or advise in anyway and its a great community, I've been helped so much by this when I've had questions or worries.
The first year is usually the toughest as thats when your trying to find the right meds etc and get used to having the illness ,what you can and can't do, eat, that sort of thing.
You CAN get better, it might take a little time but its possible that you can get into remission and maybe be among the lucky people who only have one or two flares in their lifetime. there was a post recently on remission and theres people who have had symptom-free periods lasting 20 years! You just don't hear about these people as much because, as I said earlier, they're off living happily, healthily and 'normally'.
Its not the end, I remember when I was first diagnosed thinking I'd always need to be near a toilet and would never be like my friends. Now I'm at uni, I made the cheerleading team first year (and to think just a couple of years before that I was told my arthritis would put me in a wheelchair) and am fitter and stronger than most people I know, I go out clubbing and drinking and so many things I once thought I'd never do, people have no idea I have Crohn's unless I tell them and even then they're like "eh? you don't seem like you have anything wrong with you" well thats true - there is nothing wrong with me but occasionally I get sick, when I do yes it sucks but I have great doctors and with the right treatment within weeks I'm back to being myself again.
Just keep fighting and (I know its hard) keep positive, it can be tough but you've found the best place here to help you through.