From the description it seems you are having some kind of eczematous skin disorder most probably seborrheic dermatitis
To treat the same
Avoid use of harsh soaps, cosmetics, oils or any fragrant skin products over face
Use mild soap to wash face and moisturiser like cetaphil
to moisturise dry flaky areas.
Apply a mild steroid cream like hydrocortisone cream
over the affected areas for few days.
Hopefully in few days your skin condition should improve.
Kindly start the treatment under your parent's supervision and if possible consult a dermatologist