An intersting pawn sac in the Sicilian

I'm slowly adding my early chess games to by database, and looking back, I'm sometimes suprised by the games I played 20 years ago. Certainly I had less chess knowledge then, but I suspect I made up for it with blind enthusiasm. The following game is an example of this, where I decide to sac a pawn (and then a piece) in a variation I probably knew nothing about. It turns out the sacrifices are pretty sound, and my eventual loss can instead be attributed by an overwhelming desire to checkmate my opponent by any means possible. Instead, if I had kept a cool head I probably could have reversed the result.

Press,Shaun - Hills,Richard [B93]
Belconnen Masters, 25.02.1988

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Be2 b5 8.0-0 Bb7 9.e5 dxe5 10.fxe5 Qxe5 11.Rf5N [RR 11.Bf4 Qc5 12.Kh1 Nbd7 13.Qd3 g6 14.Nb3 Qb6 15.a4 b4 16.a5 Qd8 17.Na4 Rc8 18.Rad1 e6 19.Qd4 Rxc2 20.Bf3 Bxf3 21.Rxf3 Be7 22.Rfd3 Qa8 23.R3d2 Rxd2 24.Qxd2 0-0 25.Nb6 Nxb6 Scacco,M-Nicevski,R (2340)/Rome 1995/EXT 2000/0-1] 11...Qc7 12.Bf4 Qb6 (D)
13.Ncxb5 axb5 14.Rxb5 Qa7 15.Bc7 Na6 16.Ra5 e6 17.Bb5+ Nd7 18.c3 Bc5 19.Qa4 Bxd4+ 20.cxd4 0-0 21.Bxd7 Bxg2 22.Be5 Qb7 23.d5 Bxd5 24.Qg4 g6 25.Ra3 f5 26.Bxe6+ Bxe6 27.Qh4 Qe4 0-1