[Juggler]

Stop and buy the tool(s). Buy two, if not three, from any Harbour Freight or similar outlet

The tyre tool is about 10x as wide as a screwdriver. Spreads the load and won't break.

You need to get the edges of the tyre down into the central well of the wheel. That gives you enough slack to get the tyre off.

Next to impossible to get it off otherwise.