Advice please!

Just been to plot for first time since back from 3 week hols and although I expected that would need some work to catch up again, it is horrendous 
Got it in fairly good shape before I went and asked plot neighbour to water if needed.
Only one squash plant is now still there? and although planted my strawberries in straw and rabbit manure, can't see them for weeds 
My overwintered onions are enormous and spring ones and shallots look great and my brassicas under debris netting really healthy.
Nothing else is there though 
Beetroot, turnip, pak choi, radish are all gone.
So once I have tackled the weeds, will have lots of gaps with nothing growing. I know it's not too late for some crops but bit disheartening 
My question is do I go back to a half plot?
Had a half plot for 5 years or so with lovely plot neighbours around me and then took on the other half  2 years ago.
OH helps with rotovating but I do everything which is fine as it is my hobby, not his.
Was struggling though before hols as increased my hours at work in January, planning to retire in 5 years and my daughter also goes to uni in Sept.
Have spent last year trying to make plot more manageable with paths and piling rabbit manure on everything but the half I took over has lots of fruit bushes at the end and I've really struggled to tackle them as they were so overgrown when I took plot on, about a third are now surrounded by weed fabric and chippings.
Just seeing it today makes me wonder if going back to a half plot would mean it becomes a pleasure again instead of a chore at times.
I love my plot and it's always been my bit of peace and quiet. Under my plum tree, I've made a patio area with a bench so somewhere shady to sit.
So what to do?
The plot next to me has been split in two down the middle, my lovely plot adopted dad gave up his plot 
To say my new neighbour is odd is a small understatement although I get more done as try to avoid getting into a conversation with her 
If mine was split in the middle then I could keep my plum tree and also the shed.
So do I persevere as once I've given it up, might not get a chance to get it back?
Or do I have a half that is still big enough for me but I make the most of every inch?
At home I have a garden both front and back with hedges and there doesn't seem enough time to keep on top of this too sometimes.
I was so excited to get a full plot but after today, I'm torn to know what to do?
Advice please       

     
 

You have the same problems as me.  I won't hijack your thread but suffice to say I could have written every word.  (I think I would remember, but you never know ) .  I try not to go away for very long in the growing season, but I ask my son to water if I do.  (He is 19 so I won't have that luxury for too long before he moves out).  I did give up half my plot for a year but the person who took over did nothing so I ended up trying to keep on top of the weeds his side so I took it back from him when he gave up the following year.  It is a constant battle with the weeds.  My parsnips and swede bed just grew weeds so I have given up on them, cleared them and covered in plastic till next year.  Germination was pants this year so i have ended up buying a lot of plants in.  Birds have plucked many plants out the ground, young courgette plants included and anything that I hadn't netted or weighed down with bricks around the roots.  . 
Watering has not been too bad as we have had enough rain to make my job easier, last year was hard though.  I have been trying to make the plot less work by arranging things differently, having wider paths which i intend to cover in plastic.  So have a long look at your plot and see if you can organise it so that there are fewer weeds.  Can you get the tough membrane to grow plants through? That is part of my plan.  Continue putting the membrane around the fruit bushes.  You could just put black plastic down on bits you can't handle at the moment.  If you retire in 5 years then that is  not a long time to wait until you will have loads of time to do things at your pace.  Failing that, then cut your plot in half and just start enjoying it again.  Remember that you have a few months to decide this.  The answer will come to you before you need to make this decision. 

CM, reading your post I've had the same experience with my rather large garden and veg areas. I was always able to manage it but later on it became a chore rather than a pleasure. Personally I'd go for half the plot which you can tend without too much trouble and hopefully no bother from your odd neighbour. There are some people on this forum who've either reduced or given up their plot and haven't regretted it one bit. One more thing to consider (and I apologise if this doesn't comes across as I mean it to) as we get older it takes longer to do things so you don't have as much time to go out with pals, have a snooze under a tree, or whatever pleases you because you're continually being nagged by the imp on your shoulder who keeps saying "There's jobs to do"! You've been there and done it so take it easy on yourself.

You are very welcome  .  Glad to help a fellow struggler.