Money is money. When you keep earning but spend money saved up before it's no different from spending money earned but keeping the saved up part. All your movables and immovables are under your control and can be spent at any time. The important thing is not to get carried away and spend too much!
Indeed, spending too much with unnecessary things would corrupt your Budget for incoming days. When you gamble your extra money, then you needed to set aside a budgeted capital to considered as typical funds for entertainment or recreation.
Money isn't worked for just to let it sleep, it must be circulated towards the economy and used for other important purposes intended for living.