Consistency is doing something at the same tention, over and over again. It’s about continuing to do something even when it does not seem to make sense, when you believe that the continuation will deliver what you want.
Integrity is doing what you said you will do, when you say you will do it. So, when you have identified eating healthy consistently to loose weight and control a health challenge, eating healthy with each meal, and sticking to doing what you said you will do, when you said you will do it, will deliver the health condition that you want.
So it goes for that car, house, promotion, relationship, diploma…

What I am saying is that you have two powerful tools, both of which need self-discipline and focus, to achieve what you want, it does not matter how challenging the road looks. So you have what you need. Go for it!