Does anyone get Existential Crisis like I do?

Your questions are not only normal but they are good ones to ask. It is better to wonder about life and ask questions than to go through life like a robot. To ask questions about the mystery of life and to seek the answers are good, so keep on thinking about it, but with curiosity and wonder, not with worry and fear.

Your question: "Does anyone get Existential Crisis like I do? Sometimes I will be in my bed and I'll start asking myself what is life; how can I deal with it? Also, tell me how you manage it~"

No.

With the death of Sartre, any question he may have had along the lines of "What is life?" and "What is a crisis?" in terms of personal perception and cognition ended with him.

"Jean-Paul-Charles-Aymard Sartre (... 21 June 1905 – 15 April 1980) was a French philosopher, playwright, novelist, political activist, biographer, and literary critic. He was one of the key figures in the philosophy of existentialism and phenomenology, and one of the leading figures in 20th-century French philosophy and Marxism."
• https://en.wikipedia.org/wiki/Jean-Paul_Sartre

Likewise with you.

You are a unique human being writing spam from randomly acquired phrases under the influence of random conditioning experiences peculiar to your life. Your spam as well as your perception and cognition differs from that of others although some people have similar schemas.

Overall you do not experience an existential crisis at all.

You prefer to promote platitudes and eschew knowledge and insight.

Ignorance and delusional thinking is a way of life for you, and you probably get paid to post here--

Many people share your philosophy, few are paid to post it online--although the fact that your grammar is correct seems to argue against the latter. Most of that which is sent my way is contrived.

How to improve your critical reasoning, attention span, and insight: Acquire a broad range of relevant knowledge, practice focusing on big ideas as you sit and think while reading any or all of the following suggested texts aloud daily until you have read them cover to cover.

• Where we live:
“Geosystems: An Introduction to Physical Geography” Christopherson, Robert. (Prentice Hall)
• Where we came from:
“Introduction to Physical Anthropology” Jurmain/Kilgore/Trevathan/Ciochon. (Cengage Learning)
• What we have been doing:
“History of the World” Roberts, J.M.; Westad, O.A. (Oxford University Press: 2013)
“A History of the Arab Peoples” (of Islam) Hourani, Albert. (Harvard University Press: 2002)
• Life science:
“Biology” by Raven/Johnson/Losos/Mason/Singer (McGraw-Hill)

Your perceptions and desires are products of conditioning and other sentient experience you have acquired up to this point in life. You can change the contents of your mind, and you can shape your mind to be pro-social, rational, and smarter, too.

We can change our sentient experience however by a sort of deconstruction into component parts; from that point it is ultimately a matter of adopting new, rational, wholesome paradigms.

Consciousness is a function of a cognitive neural network processing both sensory data and memory. Sentient experience can be subjectively deconstructed into four foundations of mindfulness:

1. Mindfulness of body.
2. Mindfulness of sensation as pleasant, unpleasant, or neutral (physical sensation).
3. Mindfulness of state of mind (attitude, emotion).
4. Mindfulness of content of mind (ideas, learned skills, memory, mental images, beliefs).

In your mind there is a continuous stream of thoughts, random or specific ideas, images, and feelings come and go. Any of these can distract you. You can deconstruct them via the schema above and then direct your mind back to your task.

The brain will do that sort of thing as long as you live. The brain normally processes information via random association or cognitive models you have acquired either on purpose or by random experience. Those are the things that usually drive your perceptions and behavior, even your dreams.

Garbage in = garbage out.

The brain is not a truth-seeking instrument.

You need to go to a Bible believing church. You will find your existential answers there.

I've had existential crisis since I was around 5....

At some point, you'll realize everything is infinite or one. There's no such thing as this OR that, everything is this AND that.