I'm with Glen on this one. If your stropping technique is acceptable I doubt you ruined a good edge with 15 laps on felt. Before going to a hone (especially if you aren't totally comfortable honing) I would try more laps on the leather. 60 laps may sound like a lot, but many of us do that much (or more) as part of the normal routine. Give it a few sessions like that and see if your edge improves.