I'm recovering from a serious illness and am just starting to take an interest in my appearance again following several months of treatment.
I recently got my colours done as a treat, which was a real boost and has helped me sort out my wardrobe - make-up sorting is next. But I've been sad to see the toll ill-health has taken on my looks, particularly my hair and teeth.
I'm on a low income at the moment (ssp) so I'd be really grateful if anyone can help out with suggestions on how to fix the following on a budget:
Hair - it's long-ish and I've got in the habit of mostly wearing it tied back. I could probably do with a re-style but even when I'm well I CBA with spending ages on blowdrying etc, so any new look would have to be low maintenance.
Colour-wise I'm naturally a mousy-blonde and have had highlights for years. Sadly I've gone massively grey in the past few months, so am now sporting a grim combo of streaky grey and mouse roots with grown-out and faded blonde and caramel lights 
I've been tempted to just whack a semi-permanent on the whole lot (and even went as far as buying a box of golden brown home-dye as I fancy a change and would like to go darker and warmer), but am I just making a big rod for my own back if I do this?
Teeth - let me start by saying I am extremely dental phobic at the best of times. My dentist is lovely but very expensive, and the last time I saw him (before my diagnosis) he was pretty adamant (in the nicest possible way) that I'd have to see the hygienist. As the root of my phobia started with frightening and painful "treatment" at the hands of a sadistic hygienist, I haven't been back since 
But my teeth are now stained as a result of the medication I've been taking. They make me not want to smile. Can I insist that he just cleans them cosmetically for me without messing around with my gums? I really can't face seeing the hygienist at the moment as I'm still too fragile to cope with much physical (or mental!) pain.
Also I don't have the mega-bucks needed to embark on a series of gum-cleaning visits, even if I felt mentally tough enough to deal with it. Can anyone recommend a one-off cosmetic dental treatment which doesn't break the bank? I'm prepared to go to a different practice if it's just a one-off.
TIA everyone and sorry this is so long.