Need suggestions!

Hello, new reader here. My cousin told me recently that there's always a book for everything you're going through. It helped him in his early twenties and now I'm in that position.

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I feel stuck. I feel lonely even though I'm surrounded by people. I feel constant melancholy. I don't want to feel this way though. I want to be happy and create memories.

Is there a book that can help me figure things out in my early twenties?