They are not that hard to understand once you understand some ground rules (Talking only about the Hebrew bible):
1. They are written in ancient time when the vocabulary was much more simple
2. Treat each word as its own and use its literal meaning in the sentence, and its literal meaning as the word itself without the context
3. Learn ancient Hebrew to understand the words. one word in Hebrew can mean many things. Don't mix nowadays meaning with what a word meant 3000 years ago.
4. Read each sentence several times. the literal meaning is pretty simple, now try and think what the meaning of it for you.
As there is no right and wrong, apart from the literal meaning, you can get whatever you want from the scriptures and interpret them as you think. there are no wrong answers