with all these addresses being created, wouldnt some be the same as someone elses address out there?
Theoretically it is possible, but the probability of it happening is almost zero. Another important fact to know is: since
BTC creation, there has never been a single collision. This means it hasn't happened in the past 16 years.
So never be afraid of something that hasn't even happened in 16 years, it will be hot & interesting discussion if we see it someday.