Last day

Well tomorrow is the day I have decided to quit...I have been very depressed all day just thinking about this...I love smoking and yet I hate it at the same time...I have had a headache all day...is it the Chantix or thinking too much about this...The thoughts that are running through my mind are compromising the quit day...do I really want to smoke..back and forth...I keep everyone that has managed to quit big KUDOS...if I can just may it through the first few days....it's not so much as physical as it is mental.....UGH!