I would agree that this sounds like a budget issue. Plan ahead of time and focus in your priorities, namely, things you cannot live without.
As for spending money in specific hobbies or events, that is subjective and individual. As long as you can confortably meet your priorities - that would include saving for the future - nothing is a waste of money if you believe the money invested provided a good return, such as fun in the amusement park. Some like to dine in 50$ per person restaurants, others are happy with a 10$ diner meal.
Recette - Witch 400 | EmiriTachibana - Diva 400 | SakuraHiiragi - Champion 35x | AnaJessicaAyano - Soul Master 26x | LeslieSun - Witch 26x
Bye Bright Shadow Japan, I will miss you all and my bunch of characters very much ~~