According to OneLook, 33 dictionaries have an entry for successful, but only Wordnik has a few cites for successfull (without a definition). Edit: by popular request, I will add that the adverb successfully is written with two L's. Successfuly would be incorrect.

Understanding the Context

From reading the words it sounds like teaching someone how to fail, however I hear people use it to motivate others to succeed!. So what does the expression "fail successfully" mean? Also, are there