Don't fear cravings. Ride out the craving. Ride out the a. Ride out the feelings of being overwhelmed. Sometimes you just need to hold your head and cry. Soon the pain and sadness will pass. There will be no explanation for your suffering so don't even try to find one. Crying is absolutely acceptable. Owning your feelings without attaching any intellectual sense to them is sometimes quite healthy. Know that soon your pain will pass. Know that when it passes you will have a greater appreciation for not having that pain. You will also feel incredibly good ("rocketed into the 4th dimension") when you realize that you did not have to drink, use or act out in order to survive the pain!
Ride out the pain by supporting your head lovingly in your own hands. It's okay to call someone and share it. Do not pick up the first drink, drug or harmful behavior.