Hi. I'm a Gem Sun, Aries Moon and 12H Saturn too, so we are on the same boat here
From my experience, the problem with 12H Saturn is that we tend to have this wishful thinking that we are in control of everything, when in reality there are things that just... happen. With Gem Saturn your problem would be trying to hard to find a logical reasoning for everything and to appear witty/intellectual when you are actually more of a feeling type/slow thinker (Saturn/Moon also intensifies the conflict). I have Saturn in Pisces and my problem was the boundary issue. I believed I should serve everyone when I was actually very assertive and intolerant of abuse.
You were born in 2003 so I assume you are still in high school? I also had a hard time in high school. I was incredibly awkward and unconventional. I tried very hard to change myself, until I realized that I was just trying to please a bunch of people who could care less about me in the first place. Trust me, things
will get better as you grow up, as long as you believe in your core value and focus on self-improvement
just for yourself. Saturn gets better with age and I hope you will find someone who will appreciate your unique intellect