How do I make my teeth whiter?
I don't want anything that will hurt me.
None of the following: teeth whiteners, nothing expensive, nothing that involves going to the dentist.
If you have any good drugstore toothpaste that makes a good difference. Any good natural recipes or strategies help too! I am 15 and getting my braces off in 1-2 years so when I get them off I want them to be white 
please help me, any advice also welcome.
Sorry to bare bad news, but you will have to wait until you get the braces off. Using whitening bleach will leave darker squares where the braces are attached to the teeth since it will not penetrate the cement/bonding agent/adhesive.
Just keep them clean for now. It won't take to long to bleach after they are removed.
-Stay away from whitening toothpaste they are very abrasive. They work by removing a small outer layer of enamel. This removes surface staining, but will not whiten teeth beyond their natural color (shade) like bleaching agents. Gels have the least amount of silica.
How I whiten my teeth with my teeth whitening device