I have an 84 quick regal and every time i turn the

You have a bad blower motor or bad ac compressor

Fuses blow because of higher than normal amperage in the circuit. Not sure what circuit the blown fuse is for but if it is for the fan the fan may be shorted therefore blowing the fuse. If you put fuse in while the ac was still on try shutting off the ac then putting the fuse in. See if it blows then if it doesn't then turn the ac on and if it blows you have at the very least isolated the system at fault.

your front turn signal is out or has bad connection

It needs to be recharged, the compressors are the likely leak on these.

sound's like the vents are either clogged or the switch that controls where the flow goes has either malfunctioned or broke. I have a 2000 Regal and if it is electronic like mine it could be a blown fuse, are all the lights on the panel lit etc? check your fuses.

if you check in your handbook for the car under relays and fuses check both fuses or relay for burn marks you could have a problem with the fuse board

fuse should be in fuse box under the dash on driver's side. It should have a label under the cover. The relay should be located in the"fuse box" under the hood. It should also be labeled.

check the fuse

check the headlamp switch for a short

Pull the cluster out and have it rebuilt.