Encouragement to quit smoking today?

So i smoked for 4 years & then i quit successfully after ab 30 tries for about 3 months. When i smoked a whole lot I lost way too much weight & smelled like smoke all the time & constantly had cravings. And when i quit I never craved a cig, I couldnt stand even the smell anymore & i gained healthy weight back and look so much better. . . but about two months ago i picked the cigarettes back up & i HATE that im smoking again! I cant stand the smell & i feel horrible after i smoke one & i always try to quit but all my friends smoke so when im around them i always have to have a cigarette. So, being brutally honest, please give me alot of encouragement to stop smoking today.