Yes, certainly! You have to manage your resources correctly in the final phase, i.e. you can definitely lose the game too. Now that you mention it, I should probably add something that will let you know you've gone too far to turn back.
i think more tips in game would help the player know what to do to progress
Oh yeah, pretty much by definition! Some of the lack there is by design, but I think what I will add is an indication of one of the options that isn't as obvious as it could be.
Thanks for the feedback!