Help Kurimeo get a new computer

I had a 2008 imac which has become outdated and now wont boot up o turn on at all. Its the second time it happens I had fixed it before but now the components are outdated. This is where i do all my research, have all my books,  design my images and edit my videos for my Youtube channel (Kurimeo Ahau) . I really did a lot with this machine, cant even imagine what I can do with a more modern one. Now I am like Thor without his hammer.