How do you work out if you're low energy?

On average I'm not very energetic, and I would like to change that with diet and exercise. I've heard a clean diet and exercise can make you more naturally energetic, but I am skeptical because I haven't experienced natural energy like that before. I don't know what to expect, or what I should be focusing on to really give me that boost I'm looking for.
How do you work out if youre low energy?
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+1 y
I really appreciate everyone's response. To clarify, I was looking for the practical steps to boost natural energy levels, rather than how to stay motivated. Although, it's still good to hear what everyone does to push themselves. Thanks again
How do you work out if you're low energy?
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