You die.
No. You don't die. In fact, difficulty with math is a very common problem. Struggling with math is nothing to worry about. However, you should try to come to terms with it. When you have problems you can't solve, ask for help. If you're still in grade school, your parents can probably help. Any higher and that may be a problem for them. Ask your teacher or the "smart kid" in class. More often than not they will be glad to help you. Look up how to do problems online. Khan Academy has tons of great videos and other resources to help you learn math. Don't worry about it, you're not alone.
You'll certainly not have difficulty in physics and engineering BECAUSE you are good at math or economics; math, especially, is important in physics.
No, where do you get such weird ideas? You NEED math for physics and engineering!
The correct spelling is problem (a difficulty, or a math exercise).
the level of difficulty depends solely on your level of expertise
The term for a mental difficulty with numbers or math is spelled dyscalculia.
That is correct spelling for the word "problem" (difficulty, challenge, or test example).The correct spelling is problem (difficulty, or math question).
Not necessarily. In fact, to be good at physics, especially, you'll need a lot of math.
The difficulty level of math equations depends on the age and level of the person. Small children will find multiplication unbearably hard.
I had difficulty with math throughout high school but with a lot of extra help, I did pass.
No; both physics and mathematics are almost similar.
Math practice sheets can be found online, for example, from a website named Homeschoolmath. Exercise sheets are well-categorized by difficulty and grade.
Frequency is how often something happens.