Have you ever been stuck having an all-liquid diet? If so, what was the solution to keep energy up?

Long-story short, for medical reasons I had to shift to an all-liquid/mash diet. What can you recommend to keep my energy up? I was ok the first week or so, but now it's been almost a month and energy is starting to fade, esp since I'm still prepping normal meals for other people at home.

Have you ever been stuck having an all-liquid diet? If so, what was the solution to keep energy up?
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