Take the corner of a kleenex and roll it up. That makes a very skinny but soft spike that you can put into your ear to wick out the water. IMO Q-tips are dangerous around ears.
Be advised, though, that the early stages of outer ear infections kind of feel like water stuck in the ear.
Since it has been a week, that may be the problem. Don't try to tough out an ear infection. The earlier you treat it the quicker you get cured. If one ear is more sensitive than the other when you grab the skin outside your ear and manipulate the whole ear back and forth, that would be another sign of outer ear infection aka otitus externa.
Drying out the ear using a hair dryer on a cool setting is another possibility.