To get a feeling for the vast difference between the formation of amino acids and living organisms, here’s an analogy.
Say your 20 amino acids are like letters, and a living organism is like a book. Suppose you choose a collection of letters at random. The first thing that must be correct is the type case, upper and lower (analogous to Left and Right handed molecules). Then you need the correct sequencing to make words (proteins). The words must be then be arranged in sentences that make sense (DNA). Then paragraphs (cells), then the entire book (organism). You see that at each stage, you need order. And if you don’t have order, you just have gibberish. This is an enormous problem for the theory of evolution. Where did the information to make a coherent organism come from?