Hia. 
I really am keen at knowing more about how and where other members (you) find inspiration when improvising or composing - in jazz style.
Before you can compose something original or improvise anything jazzy - Do you for example take/use one of your favourite and special progressions? etc…
I have recently been getting to know and practicing the major , minor 251 progressions (baby steps) - hopefully in the future would be able to come up with something jazzy
Would like to also share this page I currently created - it’s like my Music Journal where I put all my “very simple, random and raw” improvisations that are not at all jazz 
(there was probably one attempt on blues haha)
they all come from varied inspirations (whether an event, emotion, mood, or a simple musical motif that I heard)
Music Journal | Piano Improvisations (raw)
Please feel free to share any tips, thoughts, music when you are improvising with others, or composing music etc… Take care and hope you are well!