Cooking rice is a notoriously hard problem (and for that reason I recommend noodles instead) but my tip is:
Don’t (!) do the 2:1 thing where you mix 2 cups of water with 1 cup of rice. Some of the water will boil off and the ratio will be distorted, except if you close your cooking pot, in which case it begins to foam like crazy and give you something to clean up
Do just fill a large pot with lots of water and make it boil; then when it boils add the rice and cook a certain time with the pot open. I’ve made the best rice this way.