Paranoid mum asking: what should we do if baby has nipple confusion??

My baby is exclusively breastfed. When she was a newborn, she had a bottle or two of expressed breast milk per day. I was also worried about nipple confusion so I bought a lot of bottles (Pigeon, Avent, Medela Calma, Tommee Tippee, Spectra, Pur) and used them interchangeably. Then it came. One fine day, my baby went on a bottle strike. She would rather cry herself hoarse than to drink from a bottle. Before that day, she was perfectly fine switching between bottle and breast. Which is why I am direct latching her 100% now... All babies are different. Some have zero confusion. Like Nalika mentioned, you'd have to stick to one choice and "train" your baby from there.