7 weeks post-op gastric sleeve surgery. I have been able to get down 1 cheese enchilada. Is this a normal?

I was speaking to another patient who is 5 months out from her gastric sleeve. She told me she can only eat 3 to 4 bites. I am concerned that I have already stretched out my stomach. I tried 1/2 of a wrap and threw up because it did not want to stay down. Is eating a medium size slice of pizza or one enchilada beyond what my new stomach should be able to handle at almost 8 weeks out? I am fearful of undoing what I had done. Just trying to understand the new norm. Thank you.