This might have been part of the bug where tutorial maps were joinable, and you got dumped into somebody's completed level. Everything should be fine now since they fixed that, and these won't be shared.

For future reference if something does bug, to reset the tutorial without using Exit Map or remaking is to stop the app manually. And no, you cannot farm tutorial endlessly by redoing it. It drops you into Blackstar alas soon as you're level 2 the next time you login. Believe me I tried. Wanted to start at level 3 with some skill points, but couldn't. You can still be close to level 2 and then exit at 1.99 so you level up from handing in quests and are a bit ahead of other people.