Where do i get the oil, engine coolant and brake fluid for my car?
From your question I can tell you do not know enough about cars to deal with these things. Removing the old fluids and disposing of them is the hard bit. Oil – drain old oil, remove and replace filter, fill up oil – DIY, £25 Vauxhall dealer £45 Coolant – drain old coolant, mix new anti freeze 50/50 with water and refil – DIY £18, Vauxhall dealer £28 Brake fluid, needs changing every 2 years, this you really will need a garage to do about £50. Halfords will be able to tell you what you need and the quantities but unless you have some knowhow and the ability to work underneath the car safely then you will not be doing this yourself. Do not buy the stuff then take it to a garage to get it done – they will not do it that way.
