Struggling with Credit Thief Daily😒

I have an onshore counterpart, one level above me. We two are setting up the project and conducting workshops. The problems I have are:

1. I work in the B shift from 2 PM to 11 PM since the client is in PST. But i login usually at 10-11
2. My onshore counterpart works in EST but logs in very late.
3. Although I work in the B shift, I often extend until 1 AM because I am preparing all the PPTs and doing research. I have to explain everything I do daily for 2-3 hours. She schedules meetings during the PST afternoon to present that work.
4. It has been 2 months of the same routine. In every weekly stand-up, she gets appreciation as if she did the work and research, without giving me any credit.
5. I can escalate the issue, but no one will listen because she has been here for 12 years, whereas I joined a year ago. She has strong networking with the leadership, which I lack.
6. I can ask for release, but I like this project and have provided solutions for some challenging gaps. I feel very bad because I work for 16-18 hours per day. She could schedule the meeting in the PST morning, but she purposely schedules it in the PST afternoon and gets the credit for my work.

PS: i saw her creating a transcript to read during the meeting

Do people like this really exist? If you have personal commitments, why come to work? Don’t you have a conscience and feel guilty about stealing credit for others’ work? Nowadays, there are many posts related to stopping gender-based reservations. Is it because of situations like this?