Rule #6: If you can't tell your best friend what your doing, you probably shouldn't be doing it

I made the mistake of kissing one of my friend's boyfriend. I wasn't able to tell my best friend until about 5-6 months after. The idea of keeping such a big secret from her ate me up inside. It has honestly been so much easier since I began following rule #6. Being open in a friendship is super important.

Rule #7: No matter how mad you are, you have to forgive your best friend if they bring you ice cream

Ice cream fixes everything! I understand that there are some cases that this rule may not be able to apply, but it can fix the small things. You forgot about plans? Bring ice cream. You knock them off the bed at a sleepover? Bring them ice cream.

Rule #10: If one friend is sick/moody, the other is responsible for bringing supplies to make them feel better

This overall is a given. When my best friend is either sick, or in a mood I always try to bring her her favorite things. Her being in a better mood is overall better for everyone. No one wants to see the moody side of a teenage girl, so keeping each other happy makes the world a better place for everyone.

Rule #18: Always be happy for your bestie's success

Anytime your bestie succeeds, make it a big deal. No matter how small, whether it is she passed a test, or she got into the college of her dreams, get excited with her. Be her hype man 24/7.

Rule #19: Always go to the same school as your bestie

The worst thing that could happen would be that you and your bestie would get split up. Going to the same school as your bestie will make life much easier. Going through all your firsts is a must, and what better way to do that than to begin the adulting adventure together.