There must be some covers you like to play.
And although it can be boring to practice
existing songs over and over again, it will
certainly help you for the years to come.
I,ve been playing for 25 years now, so believe me, I know what I,m talking about.
The great advantage of playing covers is that
you, very naturally, find out how a song is
constructed and, later on, harmonized.
It has been a great help for me in my own songwriting, because after some time you know
(or hear in your mind) exactly what you can
play, and more important, what you cannot play in a composition.
You said you like to improvise, and that,s a good thing. It will make you a more natural
player. However, when you come to the stage
of composing, constructing, harmonizing and
arranging your own songs, you,d better have
some musical baggage you can really on.
Playing, and above all listening to covers,
might be a great help, you,ll find out,