How do reset the Alarm.

I just got a 1994 Mustang GT, and the power windows don’t work. I thought it might be the fuse so I looked up which fuse it was pulled it out. The fuse was fine but the alarm made a strange noise, and then when I shut the hood the alarm went off. Took me like 2 minutes to shut it off hitting the buttons on the remote. Now when I lock my car the alarm doesn’t set, but if I hit the lock button twice the horn beeps (as usual). This morning when I went to my car the little red light was flashing, but when I hit unlock the doors unlocked but the little red light didn’t stop flashing, so I couldn’t start my car. I hit the panic button and the horn was going off not the alarm, then I have to hit unlock to stop the honking, and then the lights is off and I can start my car. I have to do this every time now, what the hell did I do?

Any ideas/suggestions?

I fixed the problem. When I went home the little red light was flashing and the unlock button wouldn't disarm it, so I couldn't start the car. I took the fuses out again, put them back in and started the car by holding the unlock button on the door pannel, and that seemed to reset it. Everything is back to normal now!