my match with Donny Ariel

My match with Donny Ariel has, at last, begun! It was conceived of 7 or 8 years ago, when several people were betting a total of $10,000 on whether I would manage to score 0.5/10 (a draw) or 1/10 (when "my backers" would win). Donny reconsidered at the last minute back then, but then nostalgically called me last week, and we played a g/90 9 second delay game yesterday.

(28) Spiegel,Elizabeth - Ariel,Donny [B22]

1.e4 c5 2.c3 e6 3.d4 d5 4.exd5 exd5 5.Nf3 Nf6 6.Bb5+ Bd7 7.Qe2+ Be7 8.Ne5 0-0 9.Nxd7 Nbxd7 10.Be3 c4 11.Ba4 Bd6 12.Nd2 Qc7 13.g3 Rae8 14.Bc2 b5 15.0-0 Ne4 16.Nxe4 dxe4 17.f3 f5 18.fxe4 fxe4 19.Rxf8+ Nxf8 20.Kg2 Nd7 21.Rf1 Nf6 22.Bg5 Qe7 23.a4 a6 24.axb5 axb5 25.Bxf6 gxf6 26.Qh5 Rb8 27.Qd5+ Kg7 28.Bxe4 b4 29.Qf5 Kg8 30.Bd5+ Kg7 31.Qg4+ Kh8 32.Bxc4 bxc3 33.bxc3 Qe3 34.Rxf6 Qxc3 35.Bd5 Be7 36.Rf7 Qd2+ 37.Rf2 Qg5 38.Qe4 Bf6 39.h4 Qg7 40.Be6 Rf8 41.d5 Be7 42.Rxf8+ Qxf8

white to move and win

I was about to make the excuse to you that I had only 20 seconds left here, but then I realized this happens to me in every endgame-- I don't know what to do; I spend a lot of time thinking about it, then I'm low on time and play badly and say "well, but what could I do; I had no time." The real problem is that I usually don't care anymore by move 35; I just want it to be over. I traded queens stupidly, (Qf5) but white has a great move here.

I let you think about it and then post the answer tomorrow, hopefully. I'm going to Minneapolis tomorrow for high school nationals. We'll have a team in open and in under 1600-- 19 kids.