If only I could remember a little drafting from High School... No, not CAD, we had pencils & triangles.

Anyway, it is handy to have boxes around your parts.

If you connect the "parallel" lines in the boxes, you should arrive at a horizontal and a vertical vanishing point. I presume all the parallel lines would actually hit the same two vanishing points.

All you need to do is to make the non parallel lines parallel. And, of course, correct the right angles to right angles.

With any luck, your right view and left views will come out the same.