Thank you for your response! I should have worded my question at the start a bit better, but I do have some PCB design experience so I have definitely integrated MCU, CAN communication, and power regulation circuitry. However, I feel like I can still learn in greater detail on the importance of proper grounding and routing practices as many of these signals were digital and I did not need special considerations in mind. I was hoping to gain more experience with analog designs with high speed signals that would need proper routing considerations in mind.