How do I learn when electrical and mechanical systems overwhelm me?

Facing electrical and mechanical systems at the same time can feel like two languages shouted at once. That overwhelm is not a sign you are in the wrong trade. It is a sign you are trying to swallow the whole thing in one bite, when no one learns it that way. Separate the two in your mind before you try to join them. Learn the mechanical side as its own subject, and the electrical side as its own. Each has its own logic, and each is learnable on its own. The place where they meet only makes sense once you understand the pieces that meet there. You are not behind; you are just early. So pick one system, one side, one day, and go slow. Trace it from start to finish until you can explain it plainly to yourself. Then add the next piece. The overwhelm shrinks every time you turn a mystery into something you understand. Brick by brick, the whole structure becomes something you can hold. Give it time and it stops shouting.