Try the stair HIIT workout
Find a staircase and fast walk/run up for 20 seconds. It should feel hard and you should be out of breath. Take 1-2 minutes rest to catch your breath, then do it again. See how many reps you can do in 10-15 minutes.
Find a staircase and fast walk/run up for 20 seconds. It should feel hard and you should be out of breath. Take 1-2 minutes rest to catch your breath, then do it again. See how many reps you can do in 10-15 minutes.