2 1 year-old people can recite the mantra of compassion?

There's nothing wrong with it, and Buddhist scriptures don't stipulate how old to read. Read calmly, without any distractions. You said you were a little impetuous. I think you can adjust your mind before watching.

How to adjust the mentality? Let me talk about my personal experience. The method is simple. I watch my breathing. Note that I am talking about observing breathing here, not controlling breathing. You can sit, stand or lie down as long as you feel comfortable. Never use your own thoughts to control your breathing. Slowly, your breath will become slower and longer, and then your heart will not be impetuous. Observing the birth and death of breathing is the most effective method (at least for me), and then you will get twice the result with half the effort if you are chanting. How can chanting be effective? You should be undisturbed, articulate and read it from beginning to end, without missing a word or making a mistake. Only in this way can the spell be effective. I wish you a happy study of Buddhism!

Nanwu Great Compassion Guanyin Bodhisattva

Namo amit Ba