Basics on feelings motivating my actions

Hi, I am going back to the basics trying to clear up my mind around some foundational coaching concepts. So, I’m curious regarding the fact that if we act chasing a certain feeling we will be ultimately disappointed. And that we could choose thoughts to feel that feeling right now and act from there.

My brain tells me that one of the reasons I want to stick to my plan, or not overeat, is because my future self afterwards will be feeling proud of it. So I am confused about how the thought, “I want to do this because it will make me feel proud of myself” is limiting me?

Or a much more simple example, houses are neutral but I may decide to buy a house that is because I like the feeling of maybe accomplished or delighted that my thoughts about the house will create. So ultimately when I act I am always moving after a feeling. Am I missing something? Thanks.