I need some budget buys advice and I know you all can help me! I used to use 'high end' products but I've bought a new car and recently gone part time in my job so I need to dramatically scale down the spending to proper budget beauty buys. I'm getting to the end of some of my current products and do not have the money to replace them. When I went into Boots and Superdrug to look for replacements I was overwhelmed and I have no idea what is incredible and what is rubbish.
I'm ashamed to say I haven't had to buy 'bargain' stuff since my teens (I'm 39 now) so I now have no clue what I'm going to do.
I have oily/combination skin and now need recommendations for basic budget everything -
cleanser,
toner,
moisturiser,
primer,
Foundation for oily/comb
Eyeshadow palettes
Mascara
Shampoo and conditioner for coloured, damaged hair
Intensive conditioner/mask for coloured, damaged hair
The cheaper the better - below £5 for each preferably. Is that even possible?! My skincare was Clarins, my makeup was Benefit and Lancome and I used TIGI haircare but all that must now end. I do have some products left but when they are gone I have no way of replacing them although I have a birthday coming up and I plan on asking for some stuff for Christmas too! But long term realistically until my car is paid off I need to find alternatives. Fave product was touche eclait, nakd palette and colour corrector for red patches too 
Any advice about any products from much cheaper sources would be super appreciated.
I live north east so I can access most High Street stores including a Savers, Lidl and Aldi if necessary! Not a fan of ordering online I prefer to look at a product first, iyswim.
Any product recommendations would be truly appreciated!
TIA