Please help!

So I started the pills in November and then switched to the implant in my arm on December 11th.. well since I started birth control I’ve had horrible acne, especially cysts on my chin.. I always clean my face and do face scrubs and face masks regularly.. I’m 18 years old and I’ve never had much acne so I’ve never had to buy any acne care products.. I know one of birth controls main side effects is acne but does anyone recommend a routine I can start? Like what products are best.. Thank you so much! 😊