Sims will not get constantly confident when with their familiar. There is a second version of this mod which will turn the moodlet into a happy moodlet. Only install one version.
The SimNation Travel mod adds a new travel system to The Sims 4 that allows your Sims to travel to different worlds within the same save file. This means that your Sims can visit different vacation destinations, explore new cities, and even go on international trips.
Sims can buy antidotes, the flower of death, the waterfall in a bottle and all the other useful jungle adventure stuff via the drop down menu where they can also buy tents, lamps and other stuff for camping.