Please Help!!! I really need help with acne/blemishes I am confused?

I guess I have blemishes and not pimples... So I have a few things I can do but I am confused.. People say stop drinkin pop and things like that which I do a lot of, so I am tryin to quit... I have about 3 Avon products, which I do not know which one to use, and I was goin to use proactive stuff but I only have 2 lotions, and I am have somethin called ''Acne Mark Fading Peel" and I see that there is home remedies so I am really really confused. Also do I need a good diet? Will someone please help.