Unfortunately we can apply for re-scoring only once. I am sure you are a deserving candidate but sometimes we have to accept the fact that luck is also needed with our hard work. At this hour I can only advise you to leave behind the TSE and move ahead with TOEFL IBT. If you can score more than 45 in the TSE than I am sure you are not far away of getting 26 in IBT speaking with your persistent efforts.
All the Best