How can i quit smoking?

iv been smoking for 5 years now when i got preg i quit becausee the simple sigh of a cicigarette growed me out but then when i had my baby like i dumb *** i picked it up Again and i have been noticing that when i lough i start coughing or when i sneeze to hard my chest hurts also when i wake up my chest feels congested and i cough alot i think its time to quit im not going to put my life in danger over a stupid habit. but how can i quit smoking i dont want to use a patch or anything like that any good ideas?