I have an intense odour and I don't know why

I'm 14 and last week I was told I smell so I started showering daily, wearing deodorant and wearing as much fresh school uniform as I have, but the problem has persisted. I haven't had too many comments but today it was so bad for some people they leant away and covered their noses around me even my close friends. I haven't asked my parents as they have taught me nothing about puberty or hygiene and I'm worried to talk to them about it. Can anyone help?

Edit Thank you for your advice everyone sorry I can't reply to you all but you are all so kind tomorrow I will speak to a friend and get a new deodorant/ antiperspirant and if the problem persists I will see a doctor.