Why is reading books so hard to do!!

Guys I CANNOT finish a book for the life of me. I will start a book, get ~50-60 pages in, get bored and start a new one. I literally have like 6 books that I've started reading right now sitting near my bed and I cannot finish them. If I do finish one, it will take me several months to do so. I am really trying to finish them because I love reading but I just end up getting distracted, tired, etc.... I'm so frustrated ): I've always had this problem since I was young and idk what to do. does anyone have any tips for ACTUALLY FINISHING books?? (In case you are curious, yes I am medicated!)

Thanks in advance.