Grace is the undeserved favor and love of God. And because his grace is unmerited, there is nothing we can do to obtain it. And God puts no limits on the number of times we can go to him and ask for what we may need, such as his wisdom or his strength or guidance, etc. Grace is God's choosing to bless us even when we don't deserve it.
God's grace is available to us at all times for every problem and need we face. God's grace has enabled me to remain strong no matter how difficult my circumstances, and he will do the same for you.