how to find a worthy book?

It seems like you're putting way too much pressure on this. Just pick whatever looks interesting. I don't go around trying to decide which book is "best" for me. I just pick whatever book I think will keep my interest and be fun to read. As far as time being limited, don't you have any spare moments in the day? Any of those times can be used to read.

A lot of libraries have a kiosk that features recommendations by people who work in the library. I always check out the recommendations at my library. I've found I get hooked up with lots of good writers by checking out what the library people say is good. They're not pushing anything to sell and make money. They just know books and want to share the good ones. Check it out at your local library.

I just read almost anything that I can lay my hands on, I love reading. I read books my friends lend me, or I try to find one of those old bookstores that have book-loving people and ask the seller for his opinion. I also use goodreads to keep my stats and I check what books are top rated there. Any excuse will do, I just need to pick a book and start reading. For example, right now I'm reading an old book about Hitler's possible escape to South America that my mum was about to give away because she read it a long time ago, and I'll give it away after I've read it too. Last week I was reading a Robert Jordan book that a friend gave me. What genre do you like most?