i lost motivation and ambition in life

I'm entering my 20s and i been falling deeper into this constant burnout state throughout the past years. i'm often stuck in my comfort zone and despite the need to prepare for life responsibilities like getting a job, stable income, retiring my parents, etc, my mind and body refuses to act upon them. maybe it's because i have no proper goals or dream. no obsession. i always thought my obsession was simply being rich since i need to be independent as an adult and no longer need to worry financially, but i'm not so sure anymore. not only that, i tend to dodge social activities, not expose myself to something new, and stay isolated in my bedroom all day. sometimes i wish to run away and live in a small cabin deep inside a forest, isolated from the rest of the world. i really want to break free from this routine and live disciplined like others. any advice or books to read would be appreciated. thanks