I have made sushi 5 times now. It's been better each time. The key is the rice.
Steps you must
follow when making the rice:
-rinse rice thoroughly
-use the right amount of water (depends on how much rice you are making)
-use a rice cooker and never lift the lid
-let sit in rice cooker for 10 minutes after cooking
-once rice is finished, pour into a plastic bowl and add the rice vinegar +sugar +salt mixture (use the right amount, I find slightly less is better) and fan it for a few minutes. Mix with wooden spoon
Make it (the rice) good, then the sushi will be good.
this video is pretty helpful and goes over everything i posted above pretty much.