In the case of Buddha, like you, he couldn't find meaning in everyday life, became a monk at age 29, attained enlightenment at age 35, and became Buddha (Buddha, the one who woke up to the truth).
From then on, until he passed away at age 80, he taught teachings to people and raised many disciples.
The Buddha discovered that the cause of worry and suffering was affliction, and explained specific methods, such that when enlightenment is attained, anxiety disappears and worries and suffering disappear, and that even people who have not attained enlightenment can skillfully manipulate their worries and suffering to reduce their worries and suffering.
For example, keeping the Five Commandments (lifestyle practice) and doing samatha meditation (concentration training) and Vipassana meditation (practice of observing phenomena and realizing the truth) are the basics of ascetic practice for understanding.
You can also search for ways to do it on the internet, so if you try it, you may encounter various discoveries and joys.
Also, a belief was born in Buddhism to make it easier to understand, so that even if you don't realize it in this world, you can be enlightened in the next life.
In the Jodo sect and the Jodo Shinshu sect, they believe that they will pass away in the Pure Land of Paradise (an ideal world that is easy to understand) and call them Nembutsu (Namu Amida Buddha) and “Namu Amida Funamu Amidafu.”
So, I think being able to encounter Buddha's teachings in this world and come close to enlightenment (extinction of worries and suffering) in this life and the next is the greatest joy and significance in life.
For now, try meditating.
If you compare meditation to a game, then this mind and body is a game console.
My life as a Buddhist is to be able to play games that anyone can play anytime, anywhere for the rest of my life.
I got a game console that I can play even in my spare time, so I won't be bored for the rest of my life.
appending
If you think about reincarnation on the premise, there is a possibility that the next life will be even more unhappy even if you die prematurely, so let's do what we can do in this world for a better afterlife is a pattern of thought in Buddhism.
During that training process, if you have time to forget your worries, it will be time to forget your worries and suffering.
I hope that meditation will lead to a sense of security that any worries will pass through your mind in seconds.
Everything is painful, so there will be suffering as long as we live, and even in the next life, there will be suffering until we realize it.
So, in terms of Buddhism, it is more reasonable to die after doing Buddhist training rather than dying in a dark cloud.
appending
I don't think it's a waste if you enjoy life like a game without getting attached. (There is a character limit, sorry for one word)