Install vino
sudo apt install vino
type on your terminal
gsettings set org.gnome.Vino require-encryption false
gsettings set org.gnome.Vino prompt-enabled false
sudo vim /etc/lightdm/lightdm.conf
autologin-user=yourusername
autologin-user-timeout=0
add startup
/usr/lib/vino/vino-server