It's not hard to draw out unless you're using a super high guage pin. Lots of guys draw with like an 18 or 20 guage then pin with 25 or so. The smaller the pin the longer it will take. Some compounds are a bit thicker than others, but test e/cyp are pretty smooth. 23g should go in easily and expel a ml of test in about 10 seconds or so. Remember to use 1 pin for drawing, then change to a new pin to inject. Makes it a lot easier since the original pin will dull from going through the rubber stopper. Not to mention it's much more sanitary, and cleanliness is a major point to consider when injecting. STERALIZE EVERYTHING!
If you didn't aspirate, it's not the end of the world... just remember from now on. You don't want to inject in to a vessel. I hope you plan on rotating sites... you should be fluent in at least 3.