Anxiety through the roof

I used to suffer from anxiety but lately it's come back and gone through the roof, i think my depression has come back too which is bad times 
I've yet to crack this diet and seem to be getting ill a lot which i've narrowed down to possibly poor quality meat from the butchers left too long in the fridge before cooking
I've also started cooking just egg yolks without the whites as ive read a few threads about lectins in the white
I also fasted most of today and only ate a few spoonfuls of coconut oil, some rice/prawns/chicken/vegetables for dinner, and i just ate some bacon fried in butter and an egg yolk and i feel a bit better
Should I start supplimenting magnesium? I don't see how we can get our RDAs of vits and mins when IFing (which seems to be most of the time for people at least one meal a day)
How do we get our RDA from the food without supplimentation if we are only eating 2 meals a day?
Bit of a rambling post, sorry, still trying to crack this thing, easter holiday coming up so 3 weeks away from uni to get pure primal!!
If man made it, don't eat it