Running

If you just begin, learn good form. Small barefoot run can guide you easily. A good video on form: https://www.youtube.com/watch?v=zSIDRHUWlVo Also consider minimalist shoes.

After a c25k, you can just increase your mileage slowly. You can go above the 10% rule if you feel well, don't increase if you feel tired or sore.

Try different things: tracks, street, forest, country side, stairs... Diversity avoid to be bored, and you can discover what you prefer.

Listen to your body instead of following some strict plan. If you feel a bit tired, prefer a slow run to some intervals. If you feel soreness, slow down. If you feel great, go a bit faster.