After 2 years you'd be very lucky. New screen, new battery, possible unrepairable corrosion on the motherboard. Nothing to stop you having a go. Ideally you'll need a microscope, hot air station. Isopropyl alcohol and a toothbrush. Start with removing the board, remove any shields and clean any corrosion, as best you can anyway. Replace the board and try charging it. All depends on what is was damaged with, toilet water, sink water etc. I have a iphone se in a similar state. Just need the energy to strip the board out lol.