new lpn on tcu

Hi everybody. I just graduated from an lpn program in march. passed my boards YEAH!!. Im working in a hospital on tcu. I am extremly overwhelmed, feel like I know nothing. I leave there about in tears everyday. I have been there 6 weeks and nothing seems to be falling in place.the ratio is 1 nurse to 4 sometimes 5 patients. Im still in orientation and cant even imagine being on my own. Is this normal feelings? Im giving it my all and trying to regain my confidence. But I just feel like a complete idiot. input would be greatly appreciated. thanks