Why doesn't my IPhone connect with my YouTube?

Yeah my iPhone is experiencing difficulties. I just created a YouTube and gmail account. And it works on safari but when I try to sign into the app it won't let me. It just claims that it's an invalid username or password. But i know I'm not typing it in wrong because it signs me in with the same info in safari >.< what do I do?

While logging into Youtube or Gmail use your full email address (alternate instead of username) and try to login and it will be done.