For a car to run you need three basic components:
1) Spark (ingnition)
2) Fuel
3) Compression
(This applies assuming your engine isn't seazed, and nothing is broken)
Since your car still runs we can assume it is getting all three, but the difficulty of starting it tells us that one or more of these three is not being properly delivered. Assuming your still have compression by the year of your car it would need to be something in the ignition or fuel. Check your spark plugs for gap and correct coulored electrode (use the back of a Haynes manual for your car to diagnose electrode colour). If these are fine then check your spark plug wires. If these are fine test your coil(s). As for fuel, I don't recomend you play with the fuel system your self as judging by your terminology ("er er er er", "brooooom") you seem to lack knowledge in the automotive department. Get a Haynes manual for your car and it should tell you how to perform these tests yourself. If everything checks out, then take your car to a mechanic, tell him what you've checked, and he will test the remaining possibilities.