I want to encourage you today to not give in to that urge! If what you are doing is a worthy pursuit, if it something that God has called you to do, then don't quit! Don't give up! Step back, reassess the situation,seek God's strength, enlist the help or encouragement of others who support you and believe in you, then keep going!
Consider this exhortation from Paul in Galatians 6:9 "Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up."
Yes it might be hard right now, and you feel like giving up and quitting, but you don't have to do what you feel. Feelings are good, just don't let them behind the wheel of your life. Make them ride shotgun. Don't give up. Keep pressing on! You'll be glad you did!