Hi and welcome to a fabulous place for advice, support and encouragement.
I'm with the very wise Sheila on this one. Rid thy house of thy junk. You can't eat it if it's not there. That's all there is to it. SET YOURSELF UP FOR SUCCESS. Get rid of your "trigger" foods. But make sure to
ADD in lots of wholesome, delicious foods, so that you have what to eat. PLAN out your meals and snacks IN ADVANCE. Having a plan in place is essential IMO. Eating healthy just won't happen on it's own. So therefore I rely heavily on planning.
Losing weight and a lot of it is a doable thing. Get excited about the changes you are going to make as you transform your life. I look forward to hearing lots more from you.