Please choose the correct ending to complete the given sentence: Health: [header] How to stop your days from feeling monotonous [title] Set ambitious goals. [step] One of the best ways to break up the monotony of your day is to set ambitious goals. By setting goals, you'll challenge yourself and give yourself something to accomplish.

Ending1: [substeps] Try setting small milestones on each day. Say, for example, " i'm going to work during my lunch break and then i'm going to hike 5 miles into the mountains and fall asleep on my way home at eight am. Ending2: Instead of seeing your work or activity as something to simply get through, you'll see it as something to excel at. [substeps] If you're in sales or a similar occupation, set ambitious performance numbers. Ending3: This could be anything from writing goals down on a paper to planning a vacation for family or friends. [substeps] Though one good option is setting a daily goal for yourself in the morning after your days have passed, skipping meals or completing physically demanding tasks may not be exactly the other option. Ending4: For example, you could start setting realistic goals that are very specific. If you have one minute to spare in your day, such as cooking a meal, set that time aside for just one afternoon's exercise.

Answer format: ending1/ending2/ending3/ending4