You are in charge of your own happiness, no one else's validation or encouragement can move mountains the way self-respect and self-love can. And when self-respect and self-love become your good friends find people with that same conviction to those principles; it's easy to continue on when your loved ones are headed in the same direction. Do not preach if you're not willing to practice, this includes your obligation to be more involved than just sharing an article online and ending it in a trending hashtag — believe me, the humanity of this world depends on it. Be sure to remember that your actions mixed with the right intentions really can change the world, because the world isn't a collective mass, but it is built on the hearts and hands of individuals, it is a system and moving miracle of single components whose ripple effects are far-reaching and eternal; so find hope in knowing that even if you change just one person's life you really have changed thousands by so doing.
Stop participating in the culture that loves to take offense, because we're all trying our best, and we all have our own beliefs, and sometimes that leads to disagreements and clashing of values but it should not be the cause of disillusioned hate and disrespect for others. With that being said, try your best, and be sure to recognize that you're trying your best. It would be a good thing for you to celebrate every tiny victory — the only failure is the act of giving up and surrendering — you are allowed mistakes, and have hard days, and indulge in the occasional binge of chocolate chip cookies. With that being said, hard days are inevitable but bad days are merely the sum of choosing and dwelling on the negative.
It doesn't matter what anyone else thinks about you, as long as you are proud of who you are and the choices you're making, and will still be proud of them 10 minutes, 10 days, 10 weeks, 10 months, and 10 years from now. Do not sell yourself short. You are worth more than you can see at times, an interesting battle of humanism, trying to find self-worth without pride but still maintaining confidence, you'll figure it out, so it's best not to waste your energy worrying about it. In fact, there are many things it would be best not to waste your energy worrying about, everything always works itself out, you know this, but in case you forget I'm here to remind you. Time well spent is time soaked with love, with family, with purpose, with service — if you're too busy to serve, you're missing the whole point, and it would be best to take a second look at your schedule.
Lastly be aware of everything good thing in your life, from the warm gentle breeze right before dusk hits to the quite gentleness of the mornings, and every moment in-between. If you spend more than hour looking at your phone each day, ask yourself, are you really living a present life, and your life for that matter. Living vicariously through someone else would be terms for some self reflection and motivation to work at changing your current circumstances; besides that comparison is indeed the thief of joy, and we would all do a little bit better to just show gratitude for what we have. Each minute is a blessing, and not a guaranteed one, so it would be wise to stop taking your time for granted.
Embrace who you are at this age, and adapt accordingly.