Where do you want to go. For the nightlife, I would say, Ipsos, Kassiopi, Gouvia, Sidari, Roda, Acharavi, the list goes on and on. I could also say Kavos, but as you will be on your own (from your post), I would not say go there (but the decision is yours).
In addition to Steves answer, try looking at a search engine, like Google, and type in Corfu Accommodation, or one of the towns above, followed by accommodation. Once you have decided where you want to stay, please let me know, and I will give further advice.