You got in there gradually, so it made sense that you would get out the same way. Tunnels are like that. You go out the exit, not out the entrance . Once you truly accept this, getting out is much easier, and you avoid eating as a substitute for smoking. Please understand .
Different people have different lengths of 'smoking tunnels' to get through.
My wife's was three years long. Mine was more than 20 years long. If it's more difficult for you, if it's taking you longer than other people, it's not your fault. It says nothing bad about you. You are far from dumb, dense, childish, backward, suicidal or non-caring.