You sound very depressed right now. I'm sorry that you're feeling this way. I can't say that I've been there exactly, but I have had many times where I felt pretty hopeless and depressed.
There is no such thing as normal. The people that you perceive as normal are also dissatisfied with many aspects of their lives and are also insecure about their place in the world, their ability to find love (soul mate).
I don't know why you believe that looking hispanic should harm your ability to find love. I am assuming that the area in which you live in Canada is pretty racist? (I have family in Toronto. That's it.)
The way you feel about a situation or the way you perceive reality is NOT reality. It's just a culmination of your feelings. And feelings change.
And with school, many people don't do well. That says very little about their ability to do well and more about the teaching methods at their school. You don't have to compare yourself to those in your class.
In fact, you don't have to compare yourself with anyone. It will only hurt you. "If you compare yourself with others, you may become vain and bitter; for always there will be greater and lesser persons than yourself."<--This is from the Desiderata, something I read whenever I am feeling sad, depressed, less than. Here is it in full:
"Go placidly amid the noise and haste, and remember what peace there may be in silence. As far as possible without surrender be on good terms with all persons.
Speak your truth quietly and clearly; and listen to others, even the dull and the ignorant; they too have their story.
Avoid loud and aggressive persons, they are vexations to the spirit. If you compare yourself with others, you may become vain and bitter; for always there will be greater and lesser persons than yourself.
Enjoy your achievements as well as your plans. Keep interested in your own career, however humble; it is a real possession in the changing fortunes of time.
Exercise caution in your business affairs; for the world is full of trickery. But let this not blind you to what virtue there is; many persons strive for high ideals; and everywhere life is full of heroism.
Be yourself. Especially, do not feign affection. Neither be cynical about love; for in the face of all aridity and disenchantment it is as perennial as the grass.
Take kindly the counsel of the years, gracefully surrendering the things of youth.
Nurture strength of spirit to shield you in sudden misfortune. But do not distress yourself with dark imaginings. Many fears are born of fatigue and loneliness.
Beyond a wholesome discipline, be gentle with yourself. You are a child of the universe, no less than the trees and the stars; you have a right to be here. And whether or not it is clear to you, no doubt the universe is unfolding as it should.
Therefore be at peace with God, whatever you conceive Him to be, and whatever your labors and aspirations, in the noisy confusion of life keep peace with your soul. With all its sham, drudgery, and broken dreams, it is still a beautiful world. Be cheerful. Strive to be happy."
Max Ehrmann, "Desiderata"
Edit to add that I've underlined the parts that I'd like to say to you.
Edit to add: About the speaking issues, you will find people who understand this at some point (this has been my experience. People mocked me in high school for it, but now, I have found people who understand). It will just be outside of high school (I figure you are in high school). People become a lot more understanding with age. I think that is due to their brains actually reaching physical maturity.