Well, i just quit smoking cigarrettes 6 days ago now, smoked 4 years, any ex-smokers got advice?

i actually quit b/c i'm 22 yrs old and it's a good time, i smoked from my freshman year in college till i quit. I am surprised at how easy it is considering i used to be a pack a day smoker. I put my mind completely into it and everything is going great, cravings are easy to fight off. I also quit because i'm going to get a biopsy on a bump on the back side of my tongue. got a referral to an ent for it, i'm not too worried b/c the gp said it's good b/c it's the same color as my tongue. I've had a nasty throat infection for the past 25 days or so and that's how i found it, which is potentially good. I'm just kind of waiting patiently for my mind to be at ease. what it is is what it is, even if it's a bad prognosis i'm not going to let it ruin my mentality i have now. i've been through a lot in my life medically speaking i guess you could say. i'm a fighter and i have reached a serene clarity in my mind. as stated in question before my rant, any advice from ex-smokers that helped them stay smoke-free? :)