Colic help

My baby is 6 weeks old and is colic.

I got gripe water and tomee tipee anti colic bottles today. The bottles are “0+ months” but the nipple has a 1 on them and the flow is way to fast for her (even though is says slow flow) has anyone used these bottles and had the same issue? Could I just get smaller nipples and use those?

She’s on similac sensitive (for fussiness and gas) are there any better options for formula?

Have any of your babies been colic and what did you do? What helped the best? At night she’s fine but during the day it’s pretty bad.