A skills-based certification rewards steady practice far more than last-minute cramming, because it asks you to show that you can actually do the work. Begin by finding the official outline of what the certification covers and turning each topic into a short list of things you should be able to demonstrate. Practise those tasks on small, realistic examples rather than only reading about them, since the certification will expect you to perform, not just recall. Keep a simple record of the work you produce while preparing, both to track your progress and to spot the areas where you still feel unsure. Test yourself under conditions close to the real assessment so the format holds no surprises on the day. Space your preparation over several short sessions instead of one long marathon, because skills settle in with repetition over time. Ask someone more experienced to review a sample of your work and tell you plainly where it falls short. Walk in rested and calm, trusting the practice you have already done rather than trying to learn something new at the last minute.