Hey there! Thanks for trying out the demo! And actually, one much juicier and with way more mechanics will be released soon.
There's a Map Screen that you can invoke with the M key, for a better overview, but otherwise, yeah, a less steep curve, perhaps in form of tutorial missions, could aid more into getting into the game. Nevertheless, we don't plan to make another KSP, there's... well, KSP for that :) And our approach is for a more hands-down, cockpit-first flying.