My take is there's always a way forward; however tough our problems look! Here's me addressing and hopefully conquering my long-term barriers, using Taplature of course! The ideas demonstrated here can be used to solve problems for all styles and levels of guitar! How do they relate to your own barriers?
+ Understanding the fretboard semantically as well as spatially + Finger-picking for jazz accompaniment + Triads and triad superimpositions (these are fantastically useful) + Smoother connection of improvised phrases across key centres + More exciting ways of improvising over altered dominants + More chord voicings (this will never end!) + Better techniques for memorising complex changes + Dusting off blues articulation I haven't used for a few years and need for a new project I'm always happy to share experiences if any of this stuff interests you.