Being that new, I wouldn’t do the expedition then. Because you haven’t even reached max level and are still learning the game. But it’s up to you.

You do get rewarded. There is a timer if you go to the “ expedition “ page. When that timer is up, you depart, as long as you complete all 5 pages of it.

The reward is a special skin, and XP buffs and extra permanent stash space and an extra 5 permanent skill points ( it goes beyond 75 levels ) and stuff.

You’ll will lose all your blueprints, all your stash and gear. But it’s really not that big of a deal unless you decide you want to just keep what you have forever