Sounds like you are in a dry spell. This is really normal.

I suggest starting a DJ. Not only will it help you remember your dreams better, but it will also help your waking mind (lucid mind) become familiar with the thoughts, senstations, sights, etc of dreams. That will help you be better prepared for lucidity. Start doing RCs again (if you've stopped).

If you are stressed out and/or not sleeping well, get both of those under control.

Go back over your favoirite LD techniques. Read about LDing to get excited about it again.

If none of this works, try taking a break. Still keep a DJ, but stop the rest of it. Often this will cause LDs again.