It's great that you're excited to learn about Microsoft Azure because it's one of the most promising careers to pursue in recent years. If you want to start learning from the basics, I would recommend that you take up training that covers all the topics in a systematic way. Before enrolling in a course I would like you to watch this video for better understanding -
For advancing your azure knowledge with certification I suggest you to take up this Microsoft Azure training from Intellipaat. This training will help you to clear various Azure certifications. Upon completion of this course, one can become a certified professional with all the required skills.