When you're trying to change something significant about how you behave, there is always a conflict. This is because there are two sides to change.
There is always something we'd like to change in our lives, and we try to change, but we also want to stay the same. We want to stay the same because then we can hold on to what we know and trust. Still, at the same time, we are interested in exploring what we don't know. We want to try new things, new ways, in order to enrich our lives.
There is a process to personal change. There is forward movement, backward movement, sometimes no movement, and you find yourself stuck for a while. All of this has to do with wanting to change and not wanting to.
Let's say you make a very firm decision to change your brand of eating in order to lose weight. Try not to be too hard on yourself when you feel the pull in both directions. It's natural. Accepting your conflict is the best way to go. Then look to see if the forward steps toward the weight loss you want grow in number, and the backward steps get fewer and fewer.