Training for first tri Oct 3rd (sprint)

Okay, here goes. I am 34 year old mother of 4 training to finish my first triathlon. I have been running (if you want to call it that) since February. I had to get ready for a PT test (in the Air Force) so I started running for that. I have been an on and off again runner. I don't actually like running because I am so slow (and short). I've also been gaining and losing the same 5 lbs for the last 2 years and would like to lose more. About a month prior to deciding to start a tri training program I was running 3 days, biking 1 and swimming 1 day per week. My schedule is crazed because I work 12 hour shifts so it is very hard to get it all in. I plan to run in a 5k in September to get some organized event racing under my belt. I did my first brick on Monday and didn't need an ambulance so I am pretty psyched about that. I have actually been keeping track of my training since the 11th on paper and just converted to the log on this site. Would appreciate any comments from the more wise and experienced.