[atrus]

I was a similar path, learned and used Autocad from kid onwards. Being able to visualize things in a top/front/side view is a huge help in modelling. And you can get pretty far in making nice things with just a simple extrude/scale workflow in Blender.

As for being worth it. depends on your goals tbh. For 3d printing/cnc, I'd still stick with cad. Blender can do it, but it's not nearly as good as any cad software. If you're looking to expand into editing videos or making models for something 3d the spatial sense will make life easier in learning Blender for sure.