DECISION is a conclusion or resolution reached after considering the benefits and costs of all the actions related to a situation. It is the choice you make between alternative courses of action.

CHOICE is the act you undertake because of deciding what to do. You actively select and go with a course of action.

AGENCY is the faculty or state of acting or exerting power; action; operation. It is an action or intervention producing an effect. It is the capacity of a living creature to act in each environment. The capacity to act does not at first imply a specific moral dimension to the ability to make the choice to act, and moral agency is therefore a distinct concept. Individual capacity regarding a person’s actions. An agent typically has some sort of immediate awareness of their physical activity and the goals that the activity is aimed at realising. It is direct control or guidance over our own behaviour.

Decision involves mainly the head or mind, whereas choice is the heart or feelings.

Decide on all the available, likely, scenarios and then the final step in the process will be to make the decision that will work best for you, one that you can freely accept and live with wholeheartedly, one that you can live with in the best and most healthy way possible, one that contributes most to, and supports, your wellbeing.

The rationale of the mind/brain informs the decision — the heart, emotion and feelings inform the choice.