any C# / WPF Frontend Dev here that is willing to show me some tricks and may show me the Path on advancing?

I only came from CSS/HTML pleg lang to c# and xaml to work on a project just for fun and learning. i quite enjoy the Power you have on a Dekstop App.

Most of the recent UI is done by solely myself but i feel sometimes i lack knowledge.
https://github.com/LegendaryClient/LegendaryClient/tree/V4-Dev

Also i suck at Backend, i can change a bit of code but creating stuff from scratch or implement a new behavior/feature is impossible. specially on this project i work on, its too complex to understand to me.

so general c#/xaml advice, pref frontend