I am sorry to hear about your Crohn's diagnosis. I have had ulcerative colitis for a long time. I have cried too.
I will not sugar coat things. You will have some hard times, but you have been diagnosed at a time when treatments are much better than they used to be. There are also lots of resources out there to help you. I know people who were miserable when diagnosed but got better very quickly with treatment. There is lots of hope. There are amazing medications that can make a huge difference.
I know that right now it feels overwhelming, but at least now you know what it is and can work with your health care providers to manage it.
Learn all you can. You will need to be the leader of your team as you know your body best. Don't let others blame you for your disease by commenting about your diet etc. if diet was the cause ibd would have been cured years ago. It is not your fault.
Keep a diary, especially at first. A food diary can point to foods that are irritating. For example, spinach really bothers me. One thing I urge you to do is avoid quackery. It is rampant. Everyone knows the perfect diet, the perfect supplement etc. I have tried so many diets and supplements I could write a book. None worked for anything but draining my wallet (or starving me). For most of us, a simple, clean, and basic diet works best. When flared stick to low residue (low fiber). I eat mostly lean protein, rice, mashed potatoes. I cook all vegetables until soft. I know this sounds wrong but it is much easier to digest.
For now, be gentle and kind to yourself. Don't push too hard. Fatigue is a huge issue with ibd, the type of fatigue that makes you feel your legs are full of concrete. Advocate for yourself in an assertive way. Get the help you need, both physical and mental/spiritual.
Hang in there. It will get better. You will learn and adjust. 