There are two ways to do mosaic. I didn’t find either to be hard, just different. I think the “hardest” part is finding a pattern that works for you. Some are text only. Some are chart only, and some have both.
This pattern is less confusing when you take it step by step and pay close attention. This is inset mosaic.
This pattern is actually my own with tutorial. It’s overlay mosaic.
If you try these and have any questions, don’t hesitate to contact me! I’d be more than happy to help you! 