Saved and Not Worried About Anything? Part 1

Do you only need to believe and accept Jesus? Is being "Saved" enough? (Galatians 5:14 KJV) For all the law is fulfilled in one word, even in this; Thou shalt love thy neighbour as thyself. (John 3:16 KJV) For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.