In life, in general, hobbies come last unless they are related to your work life. If gaming is what you claim as a hobby, then take care of yourself first before your hobby.
Now, the age 20 is still very early to consider all of this (in my opinion), but it's never "too early" to start pondering about it. As you grow older, you will learn to balance important aspects in your life to ensure you are living successfully.
$60 may not seem a lot to some, but to others it is. It all depends on your income. If you are stressed about your purchases, then ensure they are smart ones. For example, if your automobile or form of transportation requires maintenance that costs $60 and the new game of your dreams, Kingdom Hearts III, also costs $60, then I hope you would make the smart decision to take care of your transportation first.
Because if your transportation is not operational, then how will you get work? If you can't get to work, then how will you pay for bills? If you can't pay bills, then you risk damage to your credit, your name, your reputation, and above all it will limit what you can do in life. Sustaining your life as an adult is important. Otherwise, you risk on losing what you had first acquired, which are the important things in life like a roof over your head, the food you eat, and other life necessities. Not some game called Kingdom Hearts III.
Major Kingdom Hearts fans in their 20's will probably shriek in horror because they can't play their beloved game, but it's not the end of the world. The game isn't going anywhere. It's not like there won't be other possibilities to play the game. Just tell yourself "eventually," work hard, and reach your goal.
Other alternatives to this concern is saving. Save money for small purchases. This could be done by creating a piggy bank, a swear jar, or even by creating a second savings account. The point is you know in the future you will spend an amount of money on something. Therefore, save and store money without touching it.
One final mention is to always look out for sales. Sales can be your best friend. At times, I see new games discounted weeks after they have been released. So instead of purchasing the game at full price, wait a few weeks to find it on sale. This can save you a good amount of money in the long run which could then be used for more important matters.
Life is like a balancing act. Don't lose focus, work hard, and make important choices.