Okay but if you know which steps need to be done, then it should be enough for you to study those steps separately. For example, do you know how to convert window coordinates to your world-space coordinates? I found this with one search: https://stackoverflow.com/questions/77373782/how-to-get-coordinates-where-pointing-a-mouse-with-raycast-in-3d.
You can’t expect a tutorial for every single small feature your game will have. At this stage you’re expected to know, you know, programming.