What Should I Use For Acne That Has Not Improved After 3 Months Of Doxycycline, Adapalene Gel, Benzoyl Peroxide, And Sunscreen?

Hie doctor l have acne for close to a year now have tried many things but its not working was taking took doxycycline for 3 months but no change upto now applying adepele gel at night morning lm using benzoyl peroxide and spf 50 sunscreen 3 months now no change what should l use realy worried everyday new big pimples like boil