SICP or HtDP?

http://mitpress.mit.edu/sicp/full-text/book/book.html

http://www.htdp.org/

Which do I read? My only programming experience consists of a year of AP CS A. Java stuff.

I'm a complete beginner and I wanted to start with SICP, but couldn't comprehend it so I am reading HTDP now. Easy as hell, I'm skipping some parts, but this should be a good intro to SICP.