That is a great question, one we all seek the answer to when starting out.
Unfortunately, the answers are far greater than a sentence or even a paragraph or two, to really answer this age old question.
Lucky for you, I have recently written an article to help point you, and other fellow beginners, in the right direction..
In this article, Top 7 Tips when Starting to Learn Blender, I outline the answers to the most asked questions relating to starting out with Blender, including course order recommendations and playlists, finding the time to practice, experimentation, touching on the preferences to speed up your workflow to your needs and quite a bit more. There are also links to further reading to dive deeper into the areas in this article.