Wasted a lot of time reading through Salesforce Platform Developer II official documentation and their advanced developer guides before my first attempt. Thought knowing all that stuff would be enough but the actual exam was nothing like what I studied.

Switched to itexamstopics.com exam topic-wise questions and it made all the difference. Doing real practice tests instead of reading those docs helped everything stick way better. Two weeks of focused practice exams and I passed on the second try. If you're going for Plat-Dev-301, skip the Salesforce docs and jump straight into practice questions. Their exam questions are way more relevant and get you to pass faster.