Spending time by oneself without distractions....
This is time alone, no electronics, no interruptions from the outside world. How the time is spent really is up to the person. I can give you some examples of what I do in this regard. I hike in the ravines where I live alone, avoid conversation and interaction with others I pass, while I focus on my breathing and the movement of my body. Any kind of physical exercise where I'm by myself, so this also includes things like my garden, foraging, or whatever else I come up with. I have many interests, so I will spend the time doing those as well, again, alone and without interruption from the outside world. Cleaning is another activity where I apply the same principles. It can be anything really. The key aspects are to be alone, to be present in the moment with what you are doing, to give yourself space to hear yourself, to observe yourself in an environment without all the distractions that are a part of regular life.
I don't follow any religion or subscribe to any belief system. Instead, I walk my own path, using that internal compass/guide.
I actually do it sometimes but each time my mind always jump off like a monkey from thoughts to thoughts
Meditation. The fact that you've noted this observation about your mind means you're on the right path with meditation. This is exactly what the mind does. It does not like to stay still. There are many kinds of meditation, but generally, when doing meditation, you are simply sitting as the observer, watching your thoughts. The reason for this, is that you will see and learn a great deal about yourself by doing so. When you practice meditation, focus on your breath, it is the simplest, easiest approach and always my favourite that I also use out of meditation. When you notice that your mind has wandered from focusing on you breathing, just gently bring it back to focus on your breath.