I've had similar problems.
It does help a wee bit if you have an idea who the parents were as the minister recording the details didn't give a lot away as he entered them.
From my records I have:
MARRIAGES:
1810 Decr 16th
Donald Crawford & Mary Cambbell both in Sherdrim
BIRTHS:
1812 Jany 6th
Mary lawful daughter of Donald Crawford & Mary Campbell in Sherdrim
1814 April 15th
Donald lawful son of Donald Crawford & Mary Campbell in Sherdrim
... and so it went on until 1838 - although the family had moved twice by then!!
The first son was usually named after the father and the first daughter after the mother, then the grandparents and so on. The marriage/birth dates above are close enough together to be accurate but sometimes it needs a bit of speculation or even an educated guess and a fervent hope that the names in use aren't too 'common'.
It soon becomes patently obvious that they had no TV in these days! 
It was a bit of a problem in bygone days however when there wasn't the 'selection' of forenames as available as we seem to have now!! It wasn't as common pre-1800's for families to move around either so that also helps.
Sorry I can't be of much more help either
.
Chiad Fhear