I'm so dehydrated right now, every night I have to drink like two glass's of water, tonight its worse?

put a count of drinking 5 liters of water everyday...

age? how long has this been happening?

if you are in your teens and this has only been happening for a few days, there is a VERY SMALL CHANCE it could be diabetes type 1.

im no md, but you haven't provided enough information to suffice a more accurate answer

if it persists any longer, dont feel scared to google any more of your symptoms but ultimately worrying about it will just prolong any stress and/or negative health effects.

talk to a doctor if it gets any worse

Go to the hospital your electrolyte level is probably too low if it is they will put you on a drip to rehydrate you if your dehydrated do not ignore it. Don't panic at all just go to the hospital and tell them what's going on its better to get an opinion from doctor

Same thing for me, it is due to the hot weather, which is making you sweat. Make sure you have a fan or/and sleep under sheets not blankets or/and have two bottles of water next to your bed