I forgot my email to my Samsung galaxy on5 & lock screen code too

I had to switch back to using my Samsung galaxy on5 after I dropped and completely broke my newer phone. Long story short i totally don't remember my email address i used to set up this phone and since i cant remember that I cant do a reset to get passed the screen lock code that i had on the phone help what can i do to get into using my phone since i am not rich and cant afford a new phone at this time.