Game crashes and doesn't start back up on the latest save..

Of course my game has crashed before, but this is new. My game crashes like multiple times within like 5h. My game is usually pretty stable so I feel like I'm playing ts3 again, but only the bad parts...

The thing that gets me in tears though is that when I restart the game, it doesn't start from the last time I saved?! So the majority of stuff I build AND SAVE disappears and it makes me wanna trow the whole game away.