If you've homeschooled your child for a number of years, you have a good understanding of her strengths and weaknesses. Because you've been in tune with her, you have been able to help her overcome most of her weaknesses over the years. However, if you've recently withdrawn your child from school, you may notice gaps in her education.
Some weaknesses may be a part of your child's unique personality. Some people are better talkers than others, some better writers, some better at math, and some better artistically. There are some things you can't change.
Other weaknesses are a result of gaps in the education process or of your child missing certain nuggets of information. When you're homeschooling your child, you'll quickly see where she needs extra assistance. Together, you can focus on the weak areas and turn them into strengths.
If your child isn't as strong in math as her brother, father, or mother, then it's probably a trait that is unique to her character. She may possibly be stronger in art, science, or music than her brother, father, or mother. Everyone has strengths and weaknesses, some of which can be improved, and some which cannot. Knowing that you've done your best and knowing that your child will be a success, thanks to the many other strengths she possesses, will be reward enough.