Get onto a scripting track?

I have often thought of writing screenplays for various reasons. I have not done much of any follow up to make that sort of thing happen. I definitely have time on my hands toward the end of each day that I could be turning into productive, creative endeavors. Why not turn it into some screenwriting? Some of it is the simple lack of "already know how to get things started"ness... the rest is just a lack of true passion to give it a stab. Maybe if I DO give it a stab I will find that the passion to actually do it really is there, after all. Probably not... but, maybe?