For me it was cold turkey - but I think you really want to give up - if you just think you should it doesn't work - or didn't for me I had as most have tried a couple of times before once for 6 months but went back to it. However once I had really had enough of smoking I found it much easier - though alomst 5 yrs on still fancy the odd puff especially if I smell a B & H they bran I use to smoke.
Mat