Drop the western view of fun - Clubbing,partying,getting high/laid anyone can do. You don’t need any hard skills for it.
You have to change your perception of fun - I am a strong believer that 20s are for building your self.
Get Up Early - Explore your religion/spirituality - Work Hard - Don’t burn yourself out but ya the seeds you sow with hard work will pay on later in life.
Go Workout - Go for a Run- Go to the Gym it’s gonna help you live longer.
Eat healthy - Quit Smoking
Own Your life - Set Goals - Figure out your 2-5-10 Year Goals.
And When you have started this journey feel free to out with your friends create movie worthy stories and find the love of your life.