making friends with 1000 free SCY

How do I make friends with this race? It always hurts. I have tried to go out slowly, but then I just slow down. I know I should pay attention to my pace, but this flies out the brain when I race. I am not a seasoned racer. At practice I pay attention to pace looking at clock but do not "feel" it. Should I just accept 1000 hurts, and swim it as fast as I can? This is my best event, but I am not loving it as I swim it.