1️⃣ Long-term lifestyle change - i.e. developing sustainable methods to make steady progress that lasts forever. Lifestyle change means empowering yourself with new knowledge & new habits. It's a journey of personal development & self-discovery. It's a process of constant refinement & self improvement, and not a quick fix.
2️⃣ A short-term solution - i.e. focusing on rapid results using aggressive & extreme methods that aren't sustainable long term. Classic short-term solutions include "challenges", "transformations" or fad diets. Typically promising results in X weeks, they provide no contingency plan: once they're over, old unhelpful habits resume and progress is usually lost.