Because you're retired, you don't have access to a lot of people and things anymore, and you don't have a goal in your life, you can feel particularly de-motivated. This is not good because the mental state also affects the body and may make you worse. You can go to a senior college or try to take care of your grandchildren or grandchildren for a while to make your life more fulfilling.
Many older people after retirement just feel that life is boring, all of a sudden there is no way to deal with the work, the whole day is spent in leisure. The children's work is relatively busy, simply do not have so much time to accompany their old parents, which will make the old parents especially lonely and lonely. Sons and daughters can enroll their old parents in a senior citizen university, so that they can learn some new things in it, such as how to play with the cell phone or how to use the cell phone to order takeout. This will make the life of the old parents more colorful and will forget the troubles they once had. You can also meet more senior companions while studying, and both sides can talk gossip together and learn about the development and changes in today's society.
After retirement, people will no longer respect you and treat you more casually. Because you no longer have real power, which may also be the reason why you feel that life has no energy. For example, if you were the leader of a department before, the people around you were all holding you up, hoping to get your promotion. Now there is no such situation, the people around you as you are an old man or old lady, will make you feel the obvious gap. You can change your mind, do not reminisce about the time when you were working it, to treat yourself as an ordinary old man. Slowly you will adapt to the retirement life, you can go out to exercise or study the food.
The interesting things in life are very much, have a pension and do not need to work, is really a wonderful experience, I guess many young people are more envious.