This is an individual issue and a Rov should be asked. There cannot be a generalized answer. Stress, mental health, shalom bayis are all factors. Yet, there is never a ” vacation” from learning Torah or Shemiras Hamizvot. My wife needed to go, b’gazunt. I walk this talk and especially now during the 3 weeks chose to increase my commitments to Torah and Mitzvot. There is no time to waste. There are no vation time for those fighting the war nor the hostages……Nuff said