HELP NEEDED!!!

My son name is kolton he is 20 days old today. He suffers from a bad case of colic. He has been breastfed strictly for 15 days, due to his colic I decided to try formula that was a fail so we are back to just being breastfed. we have tried gas drops and gripe water they worked for a couple days and now they no longer work. kolton refuses to eat at all at night but is still having the normal amount of diapers. Since the day we brought him home he has been like this and has only gotten worse. I have talked to his doctor multiple times about this and he has tried to help and we have done everything he has suggested. I am now cutting dairy completely out of my diet. I was wondering if there was anything else I could do, any other tricks yal may know that could make this any easier on kolton ? it's the most stressful and upsetting thing as a mother to watch your son sit there and scream bloody murder and not know what to do. I'm his mom I should be able to make him stop crying and I should be able to soothe him and I can't and it's really causing me to get depressed, all I want to do is help him. my doctor told me he crys like that because he is aggravated not in pain but I still can't stand seeing him this way. any helpful suggest or advice would be greatly appreciated!!