You're amazing and beautiful. Even on those days when you feel like you just can't keep going - keep going, because things will change. A day, a week, a month, a year, even a decade from now, you'll be thankful you persisted.
Stay strong and always have hope! Even if people are upsetting you, if society is disappointing you, if you're having a bad day, or anything really, remember you're not alone. There's people out there who feel like you. Sounds super
cliché,
but seriously... never give up! :) And also... this is overused too, but be yourself - never try to be someone else (speaking from personal experience here). Because there is nothing more beautiful than someone who is their authentic, true self.