I am currently listening to the book "The Last Lecture" by Randy Pausch. He recently passed away of pancreatic cancer but his lecture has gone viral on the internet. Here is a quote that has stuck with me:

"The brick walls are there for a reason. The brick walls are not there to keep us out; the brick walls are there to give us a chance to show how badly we want something. The brick walls are there to stop the people who don't want it badly enough. They are there to stop the other people!"

Nothing in life that is worth anything is easy. What has God called you to do? Go do it; and the moment you hit your first wall don't walk away and say, "It's just too hard." If you do, then maybe you didn't clearly hear from God or maybe you really aren't interested in giving your life to him when things get tough. I'm so glad I didn't give up when I hit my first wall of rejection by a mission agency years ago about starting a church. I even had one guy from seminary tell me I would fail. Believe me, I thought about giving up long and hard many times! As I approach our 5th anniversary I thank the Lord I didn't! What about you? What is God calling you to do? Don't give up!