I don’t know just need points
The best way to handle it is to throw it out. To leave cooked rice all night out of the fridge is very dangerous for somebody´s health, specially if there are babies/ kids around or a person with immune compromised system. It could cause food poisoning because of the bacillus cereus bacteria.
I think its carbohydrates
Yes it is definitely okay to drink coffee before exercising, it is actually pretty good! It can help improve your performance I heard, and it can make you more open to losing weight. Which makes the experience more enjoyable, it can be recommended as well! But also have balance and don’t do it too often, you can have smoothies and get your vitamins as well which can help as well. Hope this helps:)