When I was your age I wanted different hair, mine is MAJORLY ringlet curly land and bloody black. I have had many straightening treatments done, most of which were great for about a month, but way too expensive to keep up.
It is also too black to do much with colour wise. I have tried stuff but it has to be bleached for so long first that I used to get blisters on my scalp.

You have to work with what you've got. Believe it or not usually what nature gave you is what suits you best, and the most important thing is the cut.
I spent all those years hating it and no one ever mentioned my hair. Now I let it curl and be black people are always commenting on my hair.

Concentrate on the condition, make it look healthy, soft and stokeable. Look after it.

I work with a woman whose hair is so thin you can see her scalp through it, even at the back.
Bad hair is better than no hair.
And yours isn't even bad.
People everywhere would kill to have naturally curly, naturally red hair.
And it's not like you are a bloke, then I might have some sympathy in case you resembled Chris Evans.