After couple of hours of thinking what to do, we came to the conclusion that it would be the best to start from scratch. So I re-install Ubuntu 18.04 and install PG version 8.0.20. Then I've followed guide here:
for mounting tdrive. After that i've install: Plex,deluge,sonarr,radarr,jackett and these are my configs for all those apps:
BIG shoutout to @Xployt and @Cyber Sh4d0w for inviting me to discord channel & staying up really late to help me get through all those configs, they explained what each function do so now it's a lot clearer to me.