Girls, please help! I have awful pain. Since the first days, I've been…

Girls, please help! I have awful pain. Since the first days, I've been applying petroleum jelly and Bepanthen to my nipples. Nothing helps ? It's not just the nipples, it's bloody mess ??? What should I do? I understand that you can't feed with open wounds. You could get an infection, what if they don't heal? I've been feeding for 12 days already. There's no effect from petroleum jelly (as people say on the internet), and Bepanthen is even worse. And I bought some pads, all useless. (I bought cheap ones, maybe expensive ones are needed?) Can't we just switch to formula? ? Maybe someone has