I feel your pain, used to be a heavy smoker during 4 years and suffered from the same side effects (hard breathe, unhealthy teeth, loss of appetite, higher risk of cancer, ED, diabetes). I tried nicotine patches and gums, special therapy treatment and even hypnosis, but everything in vain. But I successfuly managed to quit the harmful habit, I owe my success to vaping. I started with e-cigs, later discovered vaporizers - all this is healthy, natural, smells great and bothers nobody. Vaping is also significantly cheaper than smoking, everything you need is just a starter kit (my latest purchase is https://gypsyvapes.com/ccell-th210-1ml-atomizer , for example, and I won't be spending anything during next few month).