You know what they say, "time is money". The "Shredder Clock" wants to ensure that none of your time is wasted, as it will begin shredding whatever currency you put in, if the alarm does not get manually shut off immediately -- you won't find a snooze button on this thing.
This is a routine cycle for being active while having chronic illness, steps 1-8. Don't give in to discouragement, adjust your goals to smaller steps. When you get to 8, rest and don't try to do so much at once. Next time, back it to step 4 and rest, you'll get back to step 1 more quickly!