Welcome to the group! It isn't overly active right now but people do pop up now and then. You say you "have to lose 100lbs and have to do it in a year". Is there a reason for that deadline? I had more than 100 to lose and the first 100 did come off in a year but then it really slowed down.

Those are good changes for what you are eating. Are you doing any exercise? Little changes can really make a difference. Your weight will go down and then up and then not move at all. It will be frustrating and you will sometimes question why you are doing it at all. But keep going. It will make a difference in the end. I found that when I was lacking motivation looking at the success stories really helped me.

Losing 100 pounds in a year is super aggressive and isn't recommended unless under close medical supervision. The more moderate losses are easier maintain. Massive losses quickly tend to return just as quickly...

My only advice to above would be to ensure you get healthy fats in with all that. Healthy fats are crucial to your body's healthy, your hormonal health, and your mental health...