weird discharge?

ok, ive heard people having strange color discharge and saying its normal. but recently my clear/translucent white discharge suddenly turned to brown. it could be normal but my anxiety is not letting me think about anything else. im 14, im aware i should have more knowledge about this but the fear that i could have contracted an std without knowing is preventing me from looking it up. im probably just overthinking it but please tell me if you think this is normal. 🥺