Welcome!
Not saving a great game is a toss of the dice worthy of respect, but sadly you rolled snake eyes... Sorta like real world submarining.
I prefer the "save before every significant event" style of play so I can develop more effective in-game tactics... There is definitely more than one way to skin a barracuda and improving approaches and exits has proven a fertile field for learning and minimizing burn out on the game.
The good news may be that at least you didn't misjudge your fuel to run dry five miles from home port.
I had a friend that has done that... yeah, that's the ticket... a friend did it...