Comment by elawler24

The best way to get started is to use a trusted design system on the frontend, and follow their components, layouts, and color scheme exactly. Once you know the rules and have something basic implemented, you can break the rules from there. I think most developers go wrong when they try to re-invent the wheel before inherently understanding the rules (by copying experts). Tailwind, Google Material Design, and Apple UI interface are good starting points that are well documented.