@Bryan, thanks for your feedback. The game is created to be hard, but for now, the beta version isn't fully balanced.
With your explanations, I think I understand the problem: just as FTL, you can't go back (=go left) on the map, or you will encounter a "threatening fleet" which follows you, and is way stronger than usual enemies. You have to choose wisely which path you are going to take to the exit, because you can't visit each and every systems on the map (otherwise, systems will become orange, then red = big big danger).
Balancing is one of our priority, and we are working on it. We will send a survey with the next Beta version, which will normally be released this week. This survey will help us to understand how players perceive the difficulty in Crying Suns.
@Specta Hope your test goes well ^^