Rabbi Nachman teaches,
In order to serve God, you must be obstinate. On no account should you give up and abandon the practices you have begun. Don't give up in any way, no matter what happens. Remember this well, because you will be in great need of it when you start serving God. You must be very obstinate indeed, holding yourself strong and firm in your place each time the evil forces try to throw you down. This will happen very often. Your task is to continue as best as you can without allowing yourself to fall completely, God forbid.
Inevitably you must encounter all kinds of difficulties and setbacks. You will fall down many times before you can enter the gates of holiness. Even the greatest Tzaddikim have gone through all this. There are cases when a person is already at the gate of holiness, only to slide back because of these difficulties. When a person is close to the gate, the forces of evil try to prevent him from entering. This pushes some people into retreat. That is the way of the Evil One: when he sees a person literally at the gates, he attacks more powerfully than ever. That is why you need to be so strong.
If you want to enter God's service, remember all this very well. Strengthen yourself in every possible way and do what you can to continue with your devotions. Eventually, with God's help, you will surely succeed in entering through the gate. God is overflowing with love and very much wants your devotions. Know that every single effort you make is important. All your attempts to detach yourself even slightly from the material world and draw closer to the spiritual are added together. They will all come to your aid when you really need it when you are under pressure or in trouble, God forbid.
And know that in life a person has to pass over a very narrow bridge. The main thing is not to be afraid.
Likutey Moharan II, 48
Have a successful day!