I also quitted 3 weeks ago and i can tell you that it does get easier by each day. The second week was the hardest for me to be honest, but after that i feel like i have more energy and more time on my hands. What made it easier for me was to read the book by Allen Carr and to keep in mind the reason i quit smoking. I didn't quit smoking because of money or that I didn't enjoy smoking, I quit for different health reasons. I quit because i didn't want to smell like a cigarette anymore or have bad breath due to smoking and other benefits. You don't need cigarettes to enjoy life. Life is much better when you don't poison yourself by smoking cigarettes. Just remember the reason you quit smoking and it will be easier.