if you lose a lv more than 5 times, you should have an option to skip it. this could be nice for the maps that require speed (hint: day 13)
in origanal beta there was a key to press to win instanly. Check out youtube for help. there are plenty of videos there.
Review basic game mechanics and remember to pause. No story mode levels are at all challenging if you know what you're doing.
I completed the game without ever noticing that there was a "save game" option, but I pounded my head on the desk many times on day 13 until I learned that you could pause the game, and still start builds, digs, etc.
That should be added into the training