Be confident. It is disrespectful to communicate with others without looking at them. Inferiority is the biggest enemy you hire for yourself. You should have the confidence to drive him away. You should communicate with others more, don't care too much about vocabulary, sometimes it is better to express it in plain words. Don't care too much about whether others like you, because being too sensitive will make people afraid to approach you. Be confident, happiness is waiting for you, and I wish you happiness every day.