I'm a smoker and my conditioning is bad..... I'm not overweight but I'd run out of gas if I ran a block. I'm looking to start training in BJJ and kickboxing.... should I not even bother trying to start training until I quit smoking and get in shape or should I go into it as I am now and use my training as a tool to get in shape and quit smoking? I don't want to make the training any harder then it already will be by being completely out of condition but at the same time I don't want to push off starting training anymore. Thanks.