Let's look at your first sentence: "Although my daughters are twins they do not look or act alike, they have plenty of differences My daughter Kymberly is in her first year of Premedia at Durham College, still lives at home and likes to hang out with alot of friends at once"
"Although my daughters are twins, they do not look or act alike."<=This one can be a sentence, just add comma,
=>you can use FANBOYS to connect 2 compound sentences or a semicolon. For example, "Although my daughters are twins, they do not look or act alike, and they have plenty of differences" OR "Although my daughters are twins, they do not look or act alike; they have plenty of differences( PICK THE WAY YOU LIKE)=>My daughter, Kymberly, is in her first year of Premedia at Durham College, still living at home and hanging out with alot of friends.
=> She always has something going on= She is an active person or she is an extrovert "something going on" is unclear
=>My second daughter, Jacqueline, on the other hand, finished her school and have been worked as a p.s.w
=>Although, she lives on her own with her two-year-old daughter and boyfriend, she enjoys just spending quiet relaxing evenings at home with her family and rarely goes out to parties (It is OK to keep your 2 sentences separately too, but if I were you, I would like this way)
=> However, Jacquie is the complete opposite; she is very shy and quiet, and you would never notice her attention.
=> Even though they are twins, their outlooks are different as well
=>Although they have many differences they still carry the same values, beliefs, and traditions.(I GUESS YOU WOULD TAKE THIS SENTENCE FOR ANOTHER PARAGRAPH)