Colic/acid reflux

This is hard, just exhausting. Never had to deal with this with my first. When my lo was little over 2 weeks I noticed her crying more and more for no reason. No matter what we did to help calm her, nothing works. Now losing more sleep than before, arguing a lot with my fiance and taking a lot of anger out on my 4 year old 😢. Anyone else going through this??? God its so hard. But I know she can't help it and I just want to help her