Take time off until you are itching to get back in the gym. Sometimes you just need a mental break as well as a physical break. Don't put a time limit on it. During this time off, you won't be burning as many calories, so just focus on maintaining weight. Keep your protein the same and change as little as possible about your diet.
Light cardio, such as walking is fine. The focus should be on active recovery, and the longer walks are a chance to clear your mind, think on things other than training, etc.
When you come back, you may want to choose a different method of training. You can go for longer stretches and build strength in the 70-80% of your 1RM. It doesn't sound amazing, but it works. Most strong people I've followed tend to do more volume with lower weights to build their strength. There's a few reps over time over 90%, but only a few. The vast majority of the work is done in the 70-80% range which is much easier to recover from.