Syllbus completion and test

Please help me, sir i am a 12th class student currently studying from pw yakeen batch, i have a lot of backlog, in physics, 12th organic and inorganic is pending and also 5 to 10 chapters in biology. Also intitially i gave tests but noe i cannot give the tests because my board exam came up and i dont know what whiuld i do now. Sir, should i skip tests and concentrate on syllabus completion so that i can give tests in the last month that is april or what should i do please suggest me, i have much demotivated nowadays, many distractions. Please help me and suggest me some ideas .