I wonder why we have to face so many challenges, before we get whatever we desire, but it's just the basic principle of life.
if you ain't challenged you can't ascend. Most challenges do look like a mountain. But you have got to keep trying no matter how long it takes you, you must breakthrough it.
It's just like playing a game e.g. god of war, if you don't kill the bad ass boss, you can't proceed to the next stage. Life also is in stages. Remember even stars can't shine without darkness.
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You can't be celebrated without overcoming challenges. So give it all you have got don't hold back. Those challenges are there to make you a perfect man so embrace it, also you need God's help, tell those challenges to him in prayer, he will help you overcome them.
Bless you.