You got a one-time windfall, the source and form of it doesn't really matter. Use it to pay down high-interest rate debt (e.g. credit card and the like) if you have any, and save the rest.
The nicest thing OP could do for themselves if they've "never had this kind of money in the bank" is build a rainy-day fund. It can save them a lot of stress down the line. For that matter, depending on employment situation and the like, it's not even unheard of for people to keep one year's expenses or more in highly liquid rainy-day/emergency funds.