Stop assuming you already understand meditation! 
It's a must to get rid of the mind completely. This misunderstanding ruins meditation for many people. Someone continued sits quietly, closes their eyes, and suddenly starts thinking about dinner. They assume they are failing and decide meditation isn't for them. A wandering mind is not a meditation failure. That's actually part of the practice. The goal is not permanent mental silence. The practice is noticing your attention drift and gently returning focus. Awareness itself is the training, not achieving silence. A monk once explained it perfectly: "Your mind will wander thousands of times. Keep bringing it back." That is meditation. Simple, but difficult. It takes a minimum of 30 minutes each day. So, who gave this rule? Nobody knows. But it is what it is, it turns off almost everyone who has a job and responsibilities to do. Five minutes works. Three minutes works. Studies show the brain adapts over time through regular mindfulness practice. There's nothing like consistency, which outperforms duration every time. Someone meditating 5 minutes daily will usually outperform someone doing one long session occasionally. Start embarrassingly small. Embarrassingly. Set a timer for two minutes and begin. Some people believe meditation is purely religious. Many assume meditation automatically means spirituality. Historically, meditation comes from several spiritual traditions. The same is true for yoga. Similarly, the calendar you use for meeting scheduling. Secular meditation, such as mindful stress reduction, breath awareness, body scan, is not about spirituality unless you want it to be. Hospitals, athletes, and even the military use meditation techniques. You don't need spiritual beliefs to gain value from mindfulness. If it means something to you tie it in to religion. Leave it alone if it doesn't. Both are right and both are wrong. You should feel at ease right away. Unfortunately, reality is usually messier than that. Some meditation sessions feel boring and mentally chaotic. That's completely normal. Occasionally, meditation creates moments that are hard to describe but deeply calming. Also normal. Like fitness training, meditation rarely produces instant transformation. Inner calm develops slowly through consistent practice. Think of meditation like compound interest instead of instant rewards. Meditation Doesn't Require Lotus Position: The stereotype of perfect lotus-position meditation confuses many beginners. Mostly old artwork and cultural imagery. And honestly, it discourages people. Sit in a chair. Lying down is also acceptable. Walking meditation is equally valid. The seated meditation is not the only one, there's a tradition of walking meditation that's just as valid. Your posture should support awareness, not create pain. Meditation should help your mind, not destroy your knees. Those who meditate are super zen all the time. Meet some long-term meditators and you will see that they become irritated in traffic, as do all of us. Meditation doesn't erase human emotions. They're still imperfect human beings. Meditation doesn't make you superhuman.