HeLp Me...!! BoArDs ArE cOmInG aNd My PrEpArAtIoN iSn'T wElL...

Hi all
boards are in about 16 days but i havent completed my course fully yet....I am triping over subjects like sst and sanskrit...I am feeling extremely overwhelmed, exhausted and tired...Every time i sit and try to stuyd i am getting distracted..Its very hard to focus and study for longer hours..and I cant throw my phone as i usually have transportation issues and then school groups so phone is nessesary... i hope im not being a burden but please help me out...Please give me some study tips for all subjects and tell me how to manage gap days too... btw my birthday is on science exam💀