Coliciness

My daughter is 2 months old and gets extremely collically at night. It doesn't last a few hours it last almost 12 hours 6pm-6am almost every night. I've already switched her formula from premature to gentle ease and that's not helping. I've given her two different brands of gas drop relief and Gripe water but those didn't work at all. Now I'm giving her a gripe water that's about $20 and called colic calm.. it helps very VERY little. Yes her doctor has approved all of these. Yes I've tooke. Her to the doctor to see if something is wrong with her. She is just unfortunately really collically. I don't know what to do. She keeps my entire family up and won't stop crying at night no matter what. It's beyond ridiculous and quite stressful. Do any of you have any suggestions? Anything is helpful. Thank you.