This is just the way i did it, on a 1995 car
Tools i used, rachet with 17mm socket and flathead screwdriver
First get the trims off. Push toward the back of the car here, might not want to move at first, and the trim should slide then pull off. Other side is the same and the middle section just pulls off
get the 3 trim pieces off then turn this widget quarter a turn to slacken it, same other side
then get your ratchet on these nuts, 2 each corner, and loosen them but leave them on for now right at the end of the bolts
the bumper sides are attached to one of these so pull each side of the bumper out slightly and pull towards the back of the car about an inch so it wont catch on the brackets
then you can take the 4 nuts off and pull the bumper back and off, its light enough to do yourself.
refitting really is the opposite of removing it.
The front bumper comes off the same way but remember to unplug the foglights from under/ behind the bumper