Don't start dating the cute guy at work. It's gonna be a chaotic two years and you'll learn a lot but it will do more damage than if you just live your life for you and focus on love later on.
Apply to more colleges and be genuine about it. Don't take the easy way out and "just work", it will give you too much freedom in an already wild existence and you'll make a lot of bad choices for the next decade. And if you don't want to go to a "real" college, find a trade you love. You're really gonna wish you took your friends advice when she said "just go to beauty school with me". And if you ignore that, you're gonna end up taking a course for something you don't care about and just to get people off your back about school. You'll get a job in that industry for a year before realizing how much you hate it and you'll still be paying a school loan every month when you're in your thirties. And trust me, you're gonna complain about it every.single.month. And then eventually desk job after desk job, you'll settle into one you're happy at. But you won't be fully happy because you'll have no room for growth, you'll be banking typical corporate America priced paychecks, and you'll have zero room for creativity. And your wild mind needs it! Although someday you'll start a blog and get your creative juices flowing.
About a year after graduation, you will have a baby sister. So again, you need to get off your ass and do something so that you can be an inspiration to her. It will be a bit hypocritical of you to tell her to make the right choices when it comes to school and passions and desires for her future when you don't do any of that yourself. You can tell her to learn from your mistakes, but you'd both be better off with her learning from your successes.
Put down those stupid diet pills that you bought from a cart in the mall and focus on health and nutrition starting NOW. Believe me, you're gonna have plenty of weight issues, so you should really get a hold of it now.
People will love you.
People will hurt you.
A broken heart is not the end of the world.
You will fail a lot but it will not define you.
There will be a person or two that will really have your back in your darkest times. Try not to fuck that up later...
You will be betrayed and there will also be some people that you betray and hurt.
These people around you today will not be around forever, so focus more on yourself.
You will fall in love.
Someone is gonna make you really happy one day.
You will choose all the wrongs guys and at all the wrong times.
You will break down.
Sometimes you're gonna wish you were dead.
But you can't die because you have a light at the end of all this. And you'll have a baby sister that will adore you and you two will spend every moment together. You will be the first one to hold her when she's born, you'll spend your days with her while your mom works and you will work at night and come home to excited hugs from her tiny little beautiful self. She will love you. And she will need you.
And most importantly, stop being so angry. Don't keep sweating the small stuff because it will be the hardest habit for you to break and you will need to break it at the most important time of your life... when Robert loves you. Yes, the one from Pop Warner. The one you dated so briefly at 13 years old. The one whose photo you carried in your back pocket, and whose name you covered notebooks with. That one. He will be back and he will love you.
12th grade Kelly, you're gonna be happy regardless if you take all this advice. In fact, don't take any of it, just run the path you choose because it's the one that's gonna lead you back to that Robert. And through all your mistakes and darkness, your sister is still gonna love you and admire you and look up to you and want to be with you all the time.
PS - try to never have orange hair again, especially when the background of your senior picture is orange. Idiot.