Has anything changed sleeping schedule wise through this time period, if so, try to return to previous schedule, if possible ofcourse. Other than that you could try WBTB and/or napping if you haven't already, both awesome for lucid dreaming. You can try to be more aware through day/do RCs more often/try ADA, though that your dreams are getting more vivid is definitely a good sign, also most importantly, set strong intention to have lucid dream, especially before/while going to sleep.
As for trying new techniques, i'd say stick to something that worked for you before, though, experimentation with more techniques can be good as long as you can implement it into overall schedule, i personally use mix of DILD/MILD/WILD/DEILD anyway.