If you want to make a wooden roomchop tree place log on ground in stack (up to 4 logs per stack) use axe on log stack, this make a hewn log. while holding hewn log, switch to the hammer use the build menu (next to the quickbar on the bottom of the screen) to decide what to build.
You can switch what you are building by pressing tab to show the mouse and click on the icon OR hold shift + mouse wheel. place the wooden item in the world.
I couldn't understand everything you said, but this should help.