See,u can definitely can score good in April.all u need is to revise the formulaes of every chapter of physics ,maths and physical and solve exercise 1 of any good coaching module of most of the chapters as u can.for inorganic ncert and examplar is enough.
One more important thing is never leave side topics like semiconductor ,communication,earth magnetism, environmental chemistry etc( I have done this huge mistake) they are easy and very much scoring (can increase ur marks upto 20-25)
.read from ncert learn formulaes and solve a set of questions .
Now focus more on 12th part and then later on 11th part .
Feel free to ask anything