Thinking back 4 years, I notice how good I was at lucid dreaming. In the summer I could have DILDs nearly every night, WBTBs when I didn't DILD, and now that I think of it, WILD every couple of days in the morning. I never needed a reality check, never had to stabalize, barely had trouble controlling anything.
I took a year and a half off, but started again after discovering dreamviews and I have been trying to regain that control and ease of lucid dreaming ever since.
It seems that now I rarely have a DILD, dreams are unstable and I wake up soon after becoming lucid, and I have had two WILDs since starting back up. My dream recall has also fallen.
4 years ago I had no idea what I was doing, but could do anything I wanted. Now, I actually know what it was I was/am trying to do, but I can barely keep a dream going longer than a few minutes.

If any of you could offer any ideas as to why my skills disappeared, I would appreciate it.