Keep on keeping on.
Instead of dwelling on things that are unjust or upsetting, set your sights on that which is helping you grow and develop spiritually. These are not always easy to identify but if you push yourself you’ll find them. Once you recognize the power found in continuing on, maintaining forward movement will become automatic. If you’ll honestly look at your surroundings the things of this earth will lose their luster, causing eternal things to gain a beautiful glow.
Philippians 3:13-14 Brethren, I do not count myself to have apprehended; but one thing I do, forgetting those things which are behind and reaching forward to those things which are ahead, I press toward the goal for the prize of the upward call of God in Christ Jesus.