You did the right thing in asking out a girl that you like at work.
If you hadn’t done that, you wouldn’t have known what she would say to that.
Now that you know that she is seeing someone else, you can put that to rest.
Clearly, you do want to date someone. Hence, it would work best in your favor to avoid developing the attitude that you should “stop looking.”
When you are engaged in your hobbies and with work, it’s important to be observant of those around you.
In other words, don’t get so caught up in those activities that you’re not paying attention to the people around you.
Somewhere among those people could be someone who is compatible with you and would date you.
So, live your life to the fullest but also be observant of those within your environment and interact with those that pique your interest.
If you make a habit of doing this, there’s a good chance that you will not be single for much longer.