I'm loosing it

Do you know how it feels like when yous spend all your day trying to do something but once the day is over you still haven't been able to do said thing?

 Yeah... you know that feeling. Now you know how I feel after 8 hours of useless attempts to remove the forgotten pin from an old phone. 

I'll honestly call it a day. 

If anyone has suggestions on how to do it ( android 4.3, maybe 4.4, not yet sure) comment pls.

See y'all soon.