Your development as a musician will come to an eventual standtill if you do not develop yourself as a human being. Only by having a creative, expansive and inspiring life can you create creative, expansive and inspiring music.
Music that is created with the primary aim of impressing other musicians fails to connect with the vast majority of listeners.
I have found that the best cure for self pity is to do something to help someone else.
It's important to respect and exhaustively study the masters of music, but as you grow and develop it's important to use their discoveries, not as a final destination but as a catalyst for your original ideas.