I've messed up and I don't know how to make it right

I went away and left my car with my mum and dad so that she could use it while I was gone and I'm so badly organised I didn't realise that the M.O.T. ran out shortly after I left. I don't wish to explain anything about the details except to say that this has just been another massive fuck up on my part because I wasn't responsible enough to deal with this before I flew out because I just didn't know it was due.

Now I have to wonder what to do to make up for all the things that have happened since and it's not me that has been affected by it worst of all and without going into it any further it's been an example of why I need to grow up, be more organised and sensible, think aswell as feel what I ought to do next ànd listen more and generally not leave things to others.