Despite our efforts, we failed after all. He refused to quit despite many obstacles. After performing several feats of valour, he was appointed by Hera. Since feat is an hard word maybe feats can help you with this.

And at his feats the world was scared

The team succeeded in winning the race, despite Jack almost falling near the end. The crowd gasped as the acrobats performed spectacular acrobatic feats. 'Feats' tends to be quite an old-fashioned word. The only areas it is commonly used in nowadays are things like sports and performance.