What is the best sleeping position?

I prefer to sleep on my right side. Though I understand you should sleep on your left because you throw up a little in your mouth if you sleep on your right. But sleeping on your left could also put a strain on organs. But reduce heart pain. I forgot what it does. Laying on your back stops snoring but it s not comfortable. I like to sleep on my stomach but that is the last position you should sleep it for a number of reasons but it is comfortable. Does it REALLY matter? Should I follow the "rules"? Or should I sleep in whatever position i feel is right? Btw I m a teen if that changes anything