Hey truck guys , I have a 2000f150 and it's been sitting a while .. I had finally gotten around too finishing a heater cool job on it .. and was feeling really proud Of my job and was driving it around, when I got back home I was reviving the engine hard and ripped the belt up on it .. well it sat for 6 months b4 I got around too replacing the belt .. now it turns over , can hear the fuel pump turn at key turn , but she won't fire ,, any thoughts

After putting a battery charge on it 200amp crank for several tries then filling the water levels up .. and letting it sit for 30 minutes or so and drop back the charge ..it finally cranked but the battery is toast .. it wouldn't attemp too crank back after I ran it down the road and back a few times when I parked it just now