How to find out my ELO on chess.com?
What do you mean by ELO? If you mean FIDE rating you can't.
You chess.com ratings can give you a hint, but they tend to be higher that peoples FIDE rating.
how do i check my overall rating on chess.com?
You don't have one rating at chess.com. You have different ratings for different time controls, game types, puzzles etc.
How to find out my ELO on chess.com?