Well...
When you concentrate at sin you at this moment don't concentrate at God. You focus on guilty, on law, on flesh, on body not God, His forgiveness, mercy and love. You have to regret sins, confess them (I don't now how this looks like in your…
I don't know if it could help but look here
http://www.copticchurch.net/downloads/?dir=./Coptic_Fonts_Standard
and here
http://www.filipvervloesem.be/egyptolinux/