There are many ways to build a Fantasy team. You can load up on running backs early, or you can take a Zero-RB approach. You can wait for a quarterback or you can target a quarterback in Round 2. You can reach for a kicker, or ... actually, don’t do that. Never reach for a kicker.
The fun of building your Fantasy team is finding the blueprint that works best for you. And the easiest way to do that is by doing as many mock drafts as possible prior to your actual Draft Day. Practice makes progress, and you should practice drafting as much as possible.