my base is being raided.. slowly.. somehow someone got the cords... because there was just a hole dug straight down...

What I need advise on is how to move on... I've (we) have spent hundreds of hours to make our base...
So much work all for nothing... so much work.... I don't even want to launch MC now... Im so angry... so heartbroken...
Im sure many of you guys have had this happen... how do you get over it..?