Stomach problems IBS

My stomach hurts like all the time and it’s starting to really affect my life. I feel like giving up with my future because of it. I skipped class this morning because it was hurting so bad. My doctor said it’s IBS-D. I hate it so much because whatever I eat in the morning, I’ll have to poop like 10 minutes after lol. And I have morning classes. I’ve tried getting up earlier. I’ve tried everything. 😔 I don’t know what to do and I just need to get this out here.