Thank you for the information. Based on your description, you seem to have grade 1 hamstring injury. This is the mildest form of injury and responds very well to the conservative measures. I see that you are already doing some of it. The RICE therapy is the best option at this time: Rest, ice, compression, and elevation. I also suggest you to go for physical therapy to regain the full strength. In the meantime, you can use crutches to minimize pressure in that area. It generally takes few weeks for full recovery in mild injury. You can read more about it from this link:
Please let me know if you have any other question.