I feel desperate and stupid?

So I was on the internet and it said free iPhone 5S so I put all my info street address, cell number. And I reading the comments some people said they got it and some were like fake now I'm just worried I shouldn't done it I know better so I'm guessing I'm going to get tons of junk mail? :/ I only did it that one time but now I learned my lesson and my mom told me that nothing in this world will ever be free

Not only junk mail but possible ID theft, credit cards opened in your name, etc

Aaw sweetie it's okay everyone makes mistakes… If you get an awful lot of spam maybe create a new email? X

It's a common mistake. Don't worry. Just be careful next time

Everyone makes them. The most prone are teens, and senior citizens, and those who are lonely or in a bad situation. Your mom was right though. Usually if it sounds to good to be true it is. You made a mistake (at fifty six I'm a lot older than you and I still make some bad blunders of judgement), take it and learn from it. As for being stupid I doubt that, inexperienced would be another thing.

Also a note I moved your question to what is hopefully a more appropriate section, and also hoping that others may come along and give you other better answers.