Still you cannot avoid going to the doctor. You see in your case it is probable (if you have a fungal infection) that you will need to take systemic antifungal drugs, and they are only sold if you have a prescription.
Local treatment may also be appropriate, however it may prove to be insufficient.
So do talk to your parents, and visit the doctor.
Best regards, John
I'm still only in hs so going to the doctor without my parents knowing or them not being involved will be difficult. I want to fix this issue by myself if you know how I possibly could. I have heard that it may just be some weird fungus that is making my skins red and going it a weird texture. Whatever it is it hasn't spread at all since I've had it.
Please visit your doctor as soon as possible, as it may be an infection or an inflammatory process or a large number of things. The doctor in your current condition as you are describing is unavoidable.
Best wishes, John