Guide for sliding Door

It is my first design, and I am not a professional, so be kind. I learnt to use software and tools for 3d design by myself.
This project started because my sliding door didn't work fine. I noticed that the lower guide was demaged.
It is a replicate of the guide of the sliding door under the sink in a camper bathroom.
I hope it can be useful for other need my same issue to fix.