Learning how to use Zoho

I have been using Zoho for about 5 months now. The challenge I have is that I don't think I using it to its full capabilities. Is there one place I can go that will teach me how to use the product and it features. Most of the videos that I have found tend to be more salezy tell me what it can do but not how to do it. I feel that I'm wasting a lot of time searching on how to do things. Plus it could be doing a lot more for me but "I don't know what I don't know". Any Suggestions?