I want to get free stuff from guys
Do your boyfriends buy things for you?
Yes, they already did. Surprisingly, they're helpful people.
Using people just to get things you want is bad as it hurts the guy and ruins your reputation. Try to provide your own resources in life and don't use people just to get what you want.
That's not how things work. It goes both ways, guys use girls to get what they want.
Just because it goes both ways, doesn't mean that what you're doing is right. When you use people for personal gain, you exploit someone else and you deprive yourself of the experience of earning your own way. Try to be more self-sufficient, otherwise you may never learn how to provide for yourself appropriately.