Thank you everyone for your support, I buyed ethernet cable and plugged it in my laptop after that I upgraded my driver manager (it was suggested by my friend) after that my wifi is showing and also connected
Bro after trying this
Lsmond
Sudo apt install <deb name>
And I searched google and tried
Sudo apt-get install
It said
O upgraded,0 newly installed,0 to remove and 30 not upgraded
What should I do