There are various synonyms for the phrase "better luck next time," which can be used to convey a similar message of encouragement. Some people may opt for phrases such as "keep going," "don't give up," or "try again," while others may use terms like "hopeful," "optimistic," or "perseverant." Additionally, some may use phrases such as "it's not over yet," "there's always a next time," or "failure is a stepping stone to success." Ultimately, the purpose of these synonyms is to uplift and motivate individuals to continue striving towards their goals, even in the face of disappointment or setback.