Time to give up and call a plumber to clean your drain line.
A Plunger
Shove the plunger into the toilet and go to town. The key is to get a seal between the plunger and the toilet bowl around the exit area. This is what will hopefully allow you to 'move' the water and shift whatever is blocking the pipes. It helps to have enough "water" in the toilet to cover the plunger base. This may involve taking the scary risk of flushing the toilet, but without enough liquid in the toilet, you're apt to make a big splash.
Shove the plunger into the toilet and go to town. The key is to get a seal between the plunger and the toilet bowl around the exit area. This is what will hopefully allow you to 'move' the water and shift whatever is blocking the pipes. It helps to have enough "water" in the toilet to cover the plunger base. This may involve taking the scary risk of flushing the toilet, but without enough liquid in the toilet, you're apt to make a big splash.
The first flushing toilet was for queen Victoria the first.
The flushing toilet was invented by John Harrington in 1596.
Each flush of a toilet uses the same amount of water.
The basic parts that make up the flushing system of the toilet would be the ideal parts for a toilet repair kit. The larger parts like the bowl are not things you are likely to consider repairing. So the idea bits would would a handle, washers, plunger.
Plunger XD
A plunger
The wax ring is just to seal the toilet to the drain. It has no effect on the flushing.
No
Age isn't reason for toilet not flushing. Several things could be wrong for toilet not flushing.