Don't give up just yet! What about spark? Pull one of the spark plugs and lay it against a metal surface in the engine compartment with the wire attached. Have someone crank the motor while your looking at the plug. You want to see a nice bright, strong spark, not a dim yellow one. Check each one so you can compare the strength of the spark, unless you aren't getting any at all. Also take a good look at each plug as you remove them and see if there is one or two that have been clearly burning differently than the rest.
The more information you have the better people can offer advice. There are a lot of knowledgable Toyota folks here. You should also get yourself the service manual for it. Once you find an issue, like weak or no spark for example, the manual will help you troubleshoot exactly where the problem is.
Good luck!