Kali is not a distro for beginners.
Please see the sticky thread in this sub-forum. It asked you to read it before posting in this sub-forum.
Hey there, welcome to Linux.org! I'm a big fan of Kali Linux, so decided to create a forum section for it here on Linux.org.. Kali Linux is built as a pentesting distribution - and it is assumed that you have decent enough Linux experience to be able to troubleshoot things like network...www.linux.org
From your first screenshot, it seems that your wifi is Broadcom BCM43142. The video below will explain the steps for installation. (See answer #12 in Kali thread here for details).Installing wifi driver on Kali
The next time you've encountered such issue, look for answer on Youtube or Kali Linux forum. Type in Google site:kali.org broadcom driver.If you have similar issue in the future
This video might help as well.