Emotional deficiency is a noun guiding opinion in psychology: emotional deficiency will lead to abnormal behavior if it is not compensated.
I long for love, and I am more eager to be loved. In fact, it is good for people to live simply. Don't take yourself too seriously, don't be suffocated by the trifles of life ... I think it's good to dare to love and hate, and my personality is frank. Lack of feelings is just an excuse. Maybe what you lack is self-confidence and affirmation of yourself. Be yourself, brave enough to love. There is no rehearsal in life, and every day is live broadcast.
Find a hobby to release your emotions, immerse yourself in it, read, draw, plant flowers, volunteer, listen to music, etc. Find anyone who can attract you, and then, keep a friendship with your friends. You can talk to each other, listen and share.
And try to be involved in a love relationship, which depends on fate. Finally, the recommended way is to learn traditional culture, learn the wisdom of the ancients, cultivate self-cultivation, improve personality, and be a master who can digest his emotions.
You should communicate with people around you more, let others know you from the heart, and you can also find the hearts of those people around you. How much affection they have paid for you, more or less, and it is precisely because of this that you have to slowly integrate into other people's world.
Don't think of yourself as so humble and weak, at least have confidence in yourself. Set yourself a goal so that you can fight for it. Don't always spend time on trifles and give your love. You will get more love than this. I hope you can get out of trouble and get rid of your troubles.
Friends don't necessarily need each other to be friends, but communication is necessary, which is obvious. It's nothing to digest negative emotions by yourself. You can consider telling others. Moderate, of course.
Missing is not the key. Everyone has his own way of life. Doesn't mean that most people are different or wrong. But if you are indifferent to life, you may have to see a psychiatrist.
Even if there is a problem, it is not terrible. The terrible thing is that you don't realize it, or you realize it but don't change it. In view of this age, I think it may be difficult to improve more, but I can consider doing something that requires enthusiasm, participating in group activities and volunteering. Even if you can channel your emotions in your heart, it is good for everyone to get along well.