Transaction take too long I did a transaction 4days ago with low fee that was about 0.2 USD and it has been not confirmed yet. 
I just wanna know how i can cancel it ? 
Or how many days it takes to this transaction to be confirmed. 
Would you please help me through
visit
https://blockchair.com/bitcoin/blocks

since transaction fees went up to $35   Fee/kB (USD)    

or open
https://blockchair.com/