It's so hard and tiring. What is the motivation for me to keep on/to continue/to persist in doing so?
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It's very hard and exhausting. I'm wondering what is the force behind me to keep me moving.
So hard and tired,what is the driving force to keep me going?
Hard and tired,so what drive me to keep up?
This is tormenting and tiring. What is the motivation to keep me going?