It is very
important that you learn/master sterile technique. This is crucial! You mention changing surgical dressings...think about it....what are you doing when changing that dressing.....you are exposing an entry point into the body...there is a major possibility of introducing bacteria if you are not sterile! And in certain patients, the elderly, very young...this could
be life threatening.
Doing a urinary cath is not the only time you use sterile technique...central line dressing changes/insertions, PICC/perc line dressing changes/insertion, pre-op preps,etc...there are so
many things you will do that require sterile technique.
Better to bite the bullet now, work with someone, get w/an instructor and get the procedure down. Practice makes perfect! Good luck!