As there is not really an educational background given, I'd suggest learning a new programming language or starting with SICP or other cool programming books, which have the potential to give the reader and eager learner many "Aha!" moments and insights. That should make programming interesting again. There is always more to learn about code and programming.

Or alternatively, do something else, until you get an interesting idea or need a tool for what you actually want to deal with and code it up. This can reinforce both, programming and the actual activity, that one wanted to do.