@BRRLL99 Alteryx community is the best place where you can improve your skills. I would suggest participating in the discussion boards would definitely increase your skills.
@BRRLL99 I'd also recommend checking out the interactive lessons, and completing weekly challenges - I've found both very useful in improving my Alteryx skills:
Other, external resources that immediately come to mind are things like:
https://www.altertricks.com/ - A collaboration between ACEs (and the latter now an employee) @cgoodman3 and @JoshuaB
https://databard.co.uk/ - Blog/site of @paul_houghton
Joshua also has a book about Designer here: https://www.oreilly.com/library/view/alteryx-designer-the/9781098107512/ & Paul has recently released one on Data Engineering with Alteryx: https://www.amazon.co.uk/Data-Engineering-Alteryx-engineers-practices/dp/1803236485/ref=sr_1_1?crid=...
