You can avoid this by building up gradually and stretching after the activity. I am afraid of being injured. Walking is very safe, and it is an excellent activity to improve your health. The weather is too bad. There are many activities you can do in your own home, in any weather.
Exercise is boring.
Listening to music during your activity keeps your mind occupied. Walking, biking, or running can take you past lots of interesting scenery. I am too overweight. You can benefit from physical activity regardless of your weight. Pick an activity that you are comfortable with, like walking.