I have had such an experience. This is a kind of mental stress. You think too much, and your mind is burdened, so you are depressed. Remember not to think too much, take care of yourself in everything, be yourself, study hard and don't be greedy for too many things. Watch funny videos, have fun with friends, and find something that can make you happy.

Don't dwell on certain things all day. Some things are not for you to deal with, but for others to deal with.

Remember not to think too much, it's useless to be sentimental. Know how to give yourself a blue sky and live a rainy day. . . Good luck, friend. . Trust you, everything will be fine.