Hi @rin ! Glad to see that there are some progress.
Just a sharing from my experience; if your body suddenly need plenty of rest this means something is missing from your body. It is not regulating what you eat into energy.
But don't be so hard on yourself (for losing a lot of time of the day).
Most importantly is you keep your body active. Even while sitting you can also do some exercises (I need to find that GIF for you) which I try going onto it.
Once your body adjust to a proper routine, it will start to be able to use what you consume into energy. Rest and relax is very important when you are targeting healthy weight loss because your body will not be burning off the wrong parts of your body, especially your body muscle mass !
So if you can have a BMI scale check you will know what you are losing as well.
Otherwise, plenty of water to make sure you are detoxing. :)
I just wrote something for my kick-start breakfast today. If you would like to take a peep feel free to click the link below:

My Health Chronicles: Eating Healthy within Budget – Mini Overnight Oats #1

Feel free to share with your friends and your mom too if you find it useful! :D