Day before quit day

So here I am, a little nervouse. The reason for my date is because I have a huge stress for money at the moment and come morning time I will have no money to buy more so why not quit now.I want to to quit because I have noticed my fitness levels dropping and I'm in the process of loosing weight so I don't want smoking, holding me back in the gym.I don't like my children seeing me smoke and I don't want them to think its normal. I am very concerned for my boyfriend, his 13 years older than I am and it sounds like his constantly out of breath. His health does scare me. Tomorrow there will be no smoking but I don't know how long he will last as I really don't think his committed to quitting. I know I am going to need a lot of willpower come time when I see him light one up. We both get very cranky when we don't smoke and we have the added stress of raising three children. I'm really concerned how it will affect us.I have made this decision and I want to go through with it.