Try this---it's how I've taught students who happened to be in my O.R. rooms over the years. I think it will help you, too--soon you will be teaching your OWN students this way:
Get your Foley tray opened, (on a little prep stand or bedside table, or even on the the bed, between the patient's legs, which are "frog-legged"--just make sure it stays sterile)
Put your gloves from the kit on
Attach the syringe of H2O to the Foley--test the balloon if you include this step as part of your technique
If your patient is awake, and you want to make the catheterization as atraumatic as possible, open the syringe of KY (If she has an epidural, she may not feel the catheterization, so you can skip this step)
Pour your Betadine over your cotton balls, keeping one or 2 dry in case you need to wipe some Betadine off for better visualization of the urethra
Make a "V" with the index and middle finger of the OPPOSITE hand (that is, NOT the one you will prep and insert the Foley with---to insert the Foley, you will use your DOMINANT hand) You will maintain this traction throughout the entire procedure.
Put your "V'd" fingers at the very top of both sets (inner and outer, together) of labia and pull upwards, towards the umbilicus
Prep, using your Betadine soaked cotton balls, with the opposite (dominant) hand per usual technique, while maintaining traction--the clitoris should be quite visible, and should be aligned with the umbilicus--
Look down, and while still maintaining traction upwards with the "V'd" fingers of the opposite hand, inject a tiny bit of KY--perhaps a cc or 2-- directly into the urethra, if you want to (you can skip this step if your patient will most likely not feel the insertion---just make sure you have used plenty of Betadine for lubrication)
MAINTAIN YOUR TRACTION THROUGHOUT with the "V'd" fingers of your non-dominant hand!!!! If the Betadine has made things a bit slippery, "hook" the tips of your "V'd" fingers in and under the labia a bit, and adjust upward traction, still maintaining it
Pick up the Foley (you can gently coil it around your fingers, if you'd like, so as to make the the excess length easier to handle, and lessen the chance of contamination) insert the Foley with your dominant hand all the way to the hub into the urethra (which should be visible a short distance down, but usually aligned with, the clitoris)
When you see a drop or two of urine (if need be, you can have someone very gently Crede the bladder to push a bit of urine out and ensure you are in the right place) and then inject the entire 10 cc of H20 into the balloon port (to which it is already attached)
(Alternately, if you are certain you are in the bladder, but would still like to reassure yourself by seeing urine, you can now release traction and use your non-dominant hand to Crede the bladder)
Now pull the Foley gently down (with your dominant, still sterile hand) until it stops. You're done!
Get rid of the trash. Put the Foley drainage tube under the patient's knee (at the "hollow" in back of the knee; that is, the popliteal space) and make sure it isn't kinked or urine flow obstructed in any way. If your policy calls for the catheter to be taped to the thigh, do so.
Hang Foley bag below bed level.
Chart size of Foley, amount, color and charcter of urine initially returned, and the amount of fluid you put into the balloon (this is so anyone who uses a syringe to deflate the ballon when it's time to d'c the Foley will be aware that they need to aspirate 10 cc. of water, not 5 cc. (An easier way is to simply use a scissors and cut the Foley at the hub of the balloon port to let the water drain out)
If you do use KY, (on a female) don't use too much, as it can form a plug that can discourage the immediate free flow of urine--making you think you are not in the bladder, when you really are. If this happens, just disconnect the catheter from the bag and irrigate with a catheter tip syringe filled maybe 5-10 cc of H20--it will dissolve the KY and allow the urine to flow freely. Then you can reattach the bag. Be careful not to contaminate anything.
(Just remember that,when catheterizing females, the technique works especially well if, instead of using your thumb and index finger to retract the labia, you make a habit of using your index finger and middle finger. It's just less awkward.)
When you catheterize a male, inject the entire syringe into his urethra, rather than coating the tip of the catheter with KY---much better lubrication, and far less mess.