Post #30 from Jan 3/19 is a NEW problem that so far has NOT been answered. I agree that poster should have started a new thread, but that still is not an answer.
You post says the engine turns over well but you get no starting. You do smell gasoline. So you do NOT have a dead battery that needs replacement. And apparently you DO have fuel being delivered to the engine (and being exhausted unburned through the tail pipe). That leaves lots of other possibilities.
The suggestion to hold the gas pedal to the floor and turn the engine over continuously until it starts can work IF your car is old enough to have a carburetor. That technique can clear excess gas from a flooded engine so it will start. BUT it may not work for modern cars with fuel injection systems. You can try it. Be aware that it will drain your battery if you keep going. Be aware also that the starter motor can overheat, so it is recommended that you NOT keep it going for well over a minute or two at most. Also note this detail. FIRST push the gas pedal to the floor, and then HOLD it there ALL the time as you turn the key. Do not release the pedal or pump it until the engine does start. THEN slowly release the pedal to keep it going without over-revving the engine.
Before doing that I would want to check whether there really is any spark at the spark plugs. Failure to start can be caused by too much fuel (flooding), too little fuel, or no spark. If you know something about cars (or have a friend with some skill) check this first.
One other thought. Since you can smell gas, examine under the hood carefully for possible gasoline LEAKS. If something broke open and is spraying raw gasoline around, that is VERY dangerous and you must STOP until that problem can be found and fixed properly!