You may have been better off saving that money and spending it on something more useful, like a car. True friendships are priceless and unconditional, just like love. I may not like your friends because I see how they affect you. You go out with many of your friends, but I have noticed when you get home that you may express a very negative attitude after being with some of your friends. Most of your friends are very positive thinking and after being with them, you come home with a positive attitude yourself.
Life is already full of many negative things without having to deal with negative people.
Most mature people do not want to be around negative people and rather be with people that are positive thinking.