Advice for getting my resume shortlisted

Since I worked in a new domain - Generative AI, I feel like I'm not getting as many calls as I deserve. I have around 1.5 years of experience and I'm laid off.

I'm a software engineer who's built RAG pipelines for my previous company using Python, Flask and FastAPI and I believe due to not having Java or Golang, I'm facing issues in getting my resume shortlisted.

Do you guys have any advice for tackling this? Should I do a 3 day crash course on Golang and add it to my resume but I'm not sure if I'll be taken seriously since I don't have any professional experience with it.