How much should our pouch hold almost 4 years out?

I do it first thing in the morning. That's actually part of the instructions. 

For me, the motivation is the same as the motivation to take before and after pictures and to record my measurements. Right now, I don't really have questions about my restriction, but I don't want to have a question at, say, 5 years out and not have any baseline numbers to compare to.

Here's the instructions for those who are interested:

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