I often don't control myself.
I'm thinking about something I don't want,
It often makes me in a hurry.
I'm trying to meditate, but I'm afraid I'll send someone negative energ
Also, if these negative energies were sent, would I be responsible?
You have to be brave and practice meditation, void meditation and do a protection working on yourself. Do not be scared.
You will not send anyone negative energy, because your mind is scattered, it doesn't matter to others but yourself. Try to address this every day with void meditation and cleanings.
You won't send any negative energy to anyone. The essence of void meditation is to try to not to think about anything so that you practice to controll your mind. You are not powerful enaugh yet, to harm anybody.