Do you not have some sort of Summer School near you?? - I found a list on "NetMums - not that keen on the site itself, but do find it good on that sort of local info
Like you say the holidays are a big worry, I've learned its a good idea to plan ahead as much as possible & to give myself a break, whatever it costs, this year I've put my own DD in for a weeks full time Drama School & its very local, so she is thrilled & it gives me a much needed break mid holiday - other years she's done street dance - there was a long list of activities to choose from, some subsidised, so might be worth you checking your area on there :)
MLD I've found is the most useful therapy, gone in in pain & come out 95% better & it lasts for a while too & helps you sleep properly, which again helps - shame it doesn't last forever, but if you can afford it, its a great boost - google for approved clinics - it is recognised medically as my old therapist used to work for the NHS with Cancer patients part time too - it basically clears the toxins & excess fluid out of your system :)
Theres also a brian boosting supplement called nurozan, all brain vits minerals & herbs in one pill I came a cross it in a student mag, but its great stuff, again you'll find it in boots etc.
Also keep in mind that there can always be something behind your ME symptoms - if your instincts tell you that, keep on pushing & don't get fobbed off - after over 8 years I've had some luck in recent months - 1 down to a new GP who sent me for a blood test which confirmed I had H pylori stomach infection - I've had treatment & its turned out mmy constant sore throat & croaky voice, along with other symptoms were actually down to that - NOT ME or FM as I've been told for years - I can also drink beer again & its generally made a big improvement to a lot of things
The other came about as in recent years I've been getting recurring Lymph gland infection in my neck, excruciatingly painful as it was pressing on a facial nerve - this is meant to be a VERY rare infection - yet I kept getting it again - again fobbed off on ME
- I had a flare up at my last ENT Check up (Chronic Sinus Disease DX too
- I mentioned it by way of explaininng myself as I was on morphine for the pain, so not very together - thankfully ENT Doc sent me for a scan of my neck & jaw - he was shocked it hadn't been done before
- came back that I have a pocket of infection in my jaw bone, nerve & tooth root left over from a botched up wisdom tooth extraction some 20 plus years ago -
I've now been passed over to another department & waiting on surgery to sort it out, ENT & Maxillio specialist BOTH think this is not only the source of the gland infections, but the Sinus infections I;'ve had problems with for years & quite possibly my chronic persistent headaches too - its going to be interesting to se the difference it makes
in short I've spent years living with 2 chronic infections & they blamed ME for my being so knacked
- not expecting a cure as such, but the stomach infection being cleared HAS helped me a lot, so I'mvery hopeful
So keep that in mind as far as diagnosis goes 
hope you are having a better day today :)