There are a few resources that can help.
First, the #tutorials category has a lot of really good tutorials to help you perform specific functions. Start here, Community Tutorials
Next, the Help Center is your source of truth, review these getting started articles, Expert Tip - Getting Started From the Help Center.
And, if you prefer to get started with videos, Expert Reply - Getting Started Video Tutorials.
Finally, #CommunityTip are available to help troubleshoot common issues, directory here, Community Tip - All Published Tips.
Ah, almost forgot to search #ExpertTips for posts with great content.
Finally, after you 
and troubleshoot, ask, that’s what this Community is all about.