Should I shave my hair?

I've always had hair issues. It's fine and curly, which means I either have to live with limp curly hair for puffy hair because I've tried everything and nothing works. It's also terribly damaged. I don't colour my hair, I can't remember when I last blow dried... Because it's curly it's naturally drier. It's riddled with split ends and a lot of them are split halfway up the shaft. I lost a lot of it recently I believe due to a liver issue, and it's extremely brittle. There are some sections where it's broken like halfway up and I have some parts where it's broken right near my scalp. Now I know shaving it isn't going to miraculously cure these problems but I just don't see how I can get my hair to grow healthily with it in its current state. It's been the same length forever because I cut it as soon as it is a length I can comfortably cut (I can't afford the trim every 8 weeks).