That negativity you put on yourself is what causes you to feel even worse....You're only 16? Dam I wish I could be 16 again and enjoy high school to do whatever and have no worries of life! You say your boring and your not funny, who said that? Your friends? Or is it just you, self reflection will help you to achieve a better understanding. If you like her then find a way to tell her or someone who you can speak to, sitting on the computer and typing here to say you want to die? That is plain stupid!
Each person has their own special talent and skill, you probably haven't even discovered it yet.....Besides gaming what about some sport? Do you play any in school? If both your friends are always so happy together then be happy with them, they accept you for who you are. Why do you need to be like them to have fun? Everything is a learning process in life, that learning curve is what molds you into the person you become later. But by creating a negative environment and saying your better off not existing????????? Seriously Adrian pick yourself up!
Remember this, Kids in Africa can be happy with just using a rock as a mobile phone for enjoyment and smiling but kids who have money throw a tantrum because they have a computer, mobile phone, ipad, but do not always get what they want.
What you want sometimes may be your brain only seeking the comfort and satisfaction. But what you really want to do with your gut feeling, instinct and heart is reality.