
No worries mate. At your level it's possible to make massively rapid progress.
Personally, I find it more fun facing human opponents. If I were in your shoes, I'd join a site like
chess.com & get some coorespondence games going with people there. Ask your opponents if they will go over the game with you "post-mortem" (after the game) and, if they won, ask them what there thought process was and how they exploited your mistakes (and if you won, still try to see how you could have played even better).
As for books, there are tons of good beginner books out there. Ones with lots of chess puzzles are great. Ingraining the tactical & mating patterns into your head will take you from pure beginning to almost intermediate level in & of itself. That & not dropping pieces!
Annotated games are good to study though probably might be a bit too much at the pure beginner level (I wasn't into them much at all until I was around 1300 or so). If you want to study annotated games though I'd suggest just searching your local library for a book containing annotated chess games geared towards beginners. Also you can find a lot of free chess improvement material online.
Stuff like
this (annotated Paul Morphy game) is great.
