98 900s turning off while driving than not starting
 

about 3 weeks ago my car started shutting off while i was driving. started by my whole dashboard lighting up than shutting off and starting right up. when i started back up my check engine and check gear box light would come and stay on. Than few week of that it would start back up right away. than for the past week it just will shut off, no warning from the dashboard lighting up before it dies and as of today it will not start anymore. When i turn my key over i hear a clicking coming from the engine while the check engine light flickers. i can always tell when my car is going to start after it dies because my gas gauge will go up to where it is sopose to be...otherwise its at the bottom like if my car was shut off. Obvisouly i don't know much about cars nor have much money so any ideas??