Have a look at some of the training series on the Archicad YouTube channel.
There are many other videos there that will help you as well.
It will be very difficult via this forum to explain everything you will need to do.
If you have access to anyone else with Archicad, maybe they will be kind enough to show you a few things.
You have managed to model the walls, doors, windows and roof.
I am sure you will be able to figure out the slab tool - just drawing a polygon in plan.
The mesh tool is a little more involved but do a little google searching and you will find plenty of videos on-line.
One of the forum moderators.
Versions 6.5 to 25
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