i totally understand you. it is very hard first time you have to do this especially if you have a small flock, know each one individually or like me give them names.
I have some Jacob sheep and each one to me is special as we show them,but you cant keep them all.
You can try to sell them privately or at a sheep market. the first time i took 2 rams to the abattoir i loaded them in the trailer and gave them some food this kept them happy ,it wasn't far to travel so i couldn't worry to much. as soon as i got there they both followed the bucket of dinner inside. they closed the door and i went quickly. when you go to pick up the meat it doesn't look like a sheep . you know your sheep have had good feed and care when you had them, try not to
feel bad.
find yourself a small friendly abattoir, talk to them that this is the first time you have done this, im sure they will understand.good luck