RBS Buildtech Delay: Anyone else in Sector 35 facing this?

Seriously regretting booking that under-construction flat with RBS Buildtech in Sector 35. They promised possession by 2025 end. It's almost 2027 and still no sign! I already have a home loan running for my current 2BHK. This delay is killing me. Paying rent AND EMI is insane. Thinking if it's worth taking legal action, but honestly not sure how effective that would be. Heard so many RERA horror stories. Is anyone else stuck in the same boat with RBS Buildtech? What are you guys planning to do? Should I just cut my losses and look at ready-to-move options? Is resale even possible right now?