If you believe IAW Protestant dogma that you have the infallible guidance of the Holy Spirit, then how can you say you are lost? Likewise, if you believe as do the Catholics, that you can rely on an infallible Church, then neither are you lost. Just a quick comment, then I'm outta here! (I'm Donut Boy today for SS class!)
Both RC and NC rely, theorectically, on the Holy Spirit for guidance. The RC's merely get Him filtered through a few more men, that's all.