Do it, sometimes you'll hit a block, but what I do is just read about what I want to write (Interstellar travel, exoplanets, other types of intelligent life, etc) sometimes it doesn't help me, but when I do overcome the block, I know what I want to write about, and it'll take longer for me to hit it.
If your computer overheats, just aim a couple of fans down at the keyboard where it gets hot, that's what I do, otherwise it shuts off shortly after entering the VAB, I've been able to get 1 to 2 hours of playtime with the fans.
VttM sounds very interesting, I'm a sucker for Scifi
TAC Oooh, nice, a fantasy book.
AFJ could be interesting, although, I have to admit, I've only read one type of book like that.
They're good ideas, and drawing is fun.
Keep at it, and you could be a bestselling author someday I'm really looking forward to VttM
My current books are in my sig.