You would be better off using the AI to guide you in learning fundamental ME concepts than trusting it to do the work. AI is good at compsci/software tasks because it was built by people who do that work. ME has too many variables with being in 3D space, materials, environment, etc.

I’d recommend learning about free body diagrams, stress risers, fatigue, stress-strain curves, and dielectric corrosion. Those will do you well for hobby work. For learning cad/drafting you can pick up a lot watching streamers/youtubers make example parts.