New to Galaxy 4--lost messages

[AC Question]

I was typing a longish message....don't know what I did but all of a sudden poof, it's gone. Is this thing THAT sensitive?? It was nearly 100% charged so that wasn't it. I have to tell you I miss the keyboard on my little LG. I could fly with both thumbs. This thing slows me way down and then I must be hitting some spot that disappears the message.

 

[B. Diddy]

You might have hit the Back key. There are lots of different keyboard apps you can try on Google Play, so experiment with some of them.