My snake needs a feed judgement, please help!?

If u are not sure u can always go smaller but more. 1f is short so yes it can be that old. U wil need a cage with a warm and cool side. Also the humidity must be right. Go on google to cheak the temp fore whe work in C and not fer. U can use a heat lamp just make sure the snake can not burn it self. I like rats beter than mice. A rat pup will do the thing and i feed dead. There are a lot of things that can happin to the snake when a rat bites it. Also u need 2 hides. Good luck and hope u have fun with your new friend