Why Am I not Writing more?

I have the ideas, I know what to say, I want to write it all down but something stops me. It's like I'm getting lazy in my old age. A few years ago these thing would have been written and done with months ago.

I got all the chapters of my law and order svu stories in my head but have only published two chapters. My star trek story is also mentally planned out but I just can't bring myself to drag my fat ass to the computer to write it.

My law and order story is about this woman who gets raped and assaulted with a beer bottle and they have to do a hysterectomy to save her life. It's based on a couple of real rape cases that I heard about recently.

My star trek story involves a rape but it's based on an episode of the sopranos when dr. melfi gets raped. It also revolves around a story that I've been kicking around in my head for years. Real Star Trek fans would hate it. Good thing I don't write for other people. It's not turning out like I wanted it to but I was thinking of writing two versions of it.

Anybody got an opinion on any of this?