Q&A: How to sub out exercises , Stress management , what is the latest time to eat, should I stop training for injuries

Q&A: How to sub out exercises , Stress management , what is the latest time to eat, should I stop training for injuries  How to sub out exercises when working in different gyms/limited equipment Stress management techniques outside of work. On the days where stress is high my workouts suffer.  What is a good time to eat and a latest time to eat  When having some minor injuries/pain in muscles, should i stop training or if i can then continue training but with really small weights?