Chemistry help

have been collecting darkroom supplies and equipment for the last few years and finally have everything needed to developed prints. I have everything except the chemistry. This part makes me nervous. Can someone just tell me a pretty fool proof option for developer and fixer? I don’t want powder and don’t want to have to buy a huge volume that I won’t use before it expires. I am working with ilford 3200 and 400 film negatives on ilford paper (not RC). I love grain! I’m so close to achieving my dream of having a home darkroom set up!!!!!!