Hello @shreezen Srijan.
Welcome to the JustinGuitar Community.
Questions to you first.
How long have you been learning / playing / studying with the JustinGuitar course?
How much of Grade 3 have you already learned and how long have you been learning in Grade 3?
Have you seen this important page about Grade 3? https://www.justinguitar.com/guitar-lessons/bridging-beginner-to-intermediate-practice-routines-bg-2201
And its associated Community discussion topic where other people in your situation are sharing their issues / ideas? Bridging Beginner to Intermediate Practice Routines