An easy couple of steps that should help you out:
- Understand your concepts well
- Solve MCQs to get a better grip over your concepts
- If needed write down answer explanations and tie them to the topics learnt in the book
- Attempt Sims post the first three steps. You will feel confident and will have a hold of where the simulation is going. Again, if you make mistakes, it's totally fine. Make notes and revise.
- Check out Varun Jain's videos