As long as you're alive, it's good.
The three-year conference will change everything, changing your whole state, whether it's your life or something else. Three years will also change the friends around you. Later, you'll realize that time and distance sometimes truly matter, not through surrender, but through genuinely recognizing that something isn't right. Like long-distance relationships, people always say they rarely last, because time and distance are the biggest problems – lovers need each other's company when they need it. Some people say long-distance relationships are just right, two people in different places, each with their own things to do, and if they miss each other, they'll look for the other person in their free time, avoiding conflicts caused by prolonged togetherness, and instead, their feelings might deepen because of the long time apart. Actually, everyone has their own opinion on this matter. But who knows?

Many things change – today you argue with someone, maybe you'll make up tomorrow; you meet someone you want to see today, maybe you won't meet them tomorrow; you're in a bad mood today, maybe you'll feel better tomorrow; you arrive in a strange city, maybe tomorrow you'll wake up in a familiar place.
It seems like everyone is repeating their lives, struggling to escape, only to end up back where they started.
Some people are always calculating – they fret over friends who forget their birthdays, and for many years, they'd always remember them, but now they don't; they think this makes them less important. But birthdays are important, and the feelings behind them are even more so. There's no need to be so meticulous.

Actually, everyone is pursuing something better, longing for beauty – a harmonious family, a gentle and understanding wife, a considerate husband, respectful and supportive, children around their knees, a prosperous life. Everyone is pursuing and hoping for it.
Everyone is also constrained by unnecessary frameworks, judging others, looking down on others, having money or not having money, being capable or not capable, prosperous or impoverished… In reality, neither right nor wrong matters; as long as you're alive, it's good. After all, contentment brings happiness.
Later, you'll realize that three years have already changed a lot – some friends get married and have children, and their children have even started school; some friends forget their names but remember their faces, or remember their faces but forget their names, or simply forget everything, leaving only blurry memories and existence. Sometimes you might think about old friends and what they're like now, but it's not really out of concern, it's more like seeking to know what happened to the people who were once in your life stage, let alone if they're doing well or if you should go to them for support, or if they're not doing well, should you go to help them. Many people's lives cross yours, and you pass by without noticing; nostalgic and lingering memories are ultimately meaningless.