Take a moment to sit down that load you’re carrying and unpack it. Start by listing all the things you are trying to do, what you want to do, and /or what you’ve been doing.
Next, divide your pack into three sections: the bottom, the core, and the periphery. Put each item from your list into one of those three sections of your pack.
Before you repack for the journey ahead, consider this: the periphery is meant for the lower-weight, frequently used or needed items. Examples of these items include your compass or GPS so you know your way, your first aid kit for when you get hurt, and your headlight or head torch so you can see where you’re going. What priorities belong there and what should be left behind?
The core belongs to items that are the heaviest so they’re neither too high, nor too low, but tucked right at your spine. These items include your food, water, and your cook kit or stove. What are or should be your core priorities?
The bottom of your pack is meant for your sleeping bag or anything else you might only need at night. Does this shift the priorities you stuff in the bottom of your pack?
Look again at your pack of priorities. Are you carrying more than what you need? Just enough? Not enough for the journey ahead? If you were to name your pack what would you name it? Keep in mind that in Wild, Cheryl Strayed named hers ‘Monster.’



References
http://www.rei.com/learn/expert-advice/loading-backpack.html