Doing math is like speaking a foreign language. When you are fluent you don't think about vocabulary or grammar, it is a part of your thoughts and feelings. New concepts take time to learn and it is easy to get frustrated. It simply takes time and it really helps to try more than once. Solving problems involves both resting and working intensely.
Self confidence is one of the most important determining factors in mathematical performance.
Math anxiety means that any contact with figures can produce an unpleasant emotional reaction and become a reminder of what you feel you can't do. It is natural to try to avoid math so as not to experience these feelings. Developing comfort and facility with figures makes daily tasks involving personal finances, recipes, percentages, and tipping simpler and more expedient. The benefits of overcoming math anxiety go still further, because there is a widening of career options and improved job performance. The limiting effects of math anxiety on future jobs and careers come into play at the first opportunity to choose between taking and avoiding math.