I have a long way to go with my swimming techniques, should I keep going with the program even though I'm not able to complete the swimming portion of the workouts?

Absolutely, if swimming is your weak area then you should definitely work on it more. My private facebook group for clients is a really great resource for help too. There is a lot of great swimming advice on there. You could read the book Total Immersion or even hire a swim coach. It's just important to try and get all the distances in.