u/Away-Show-9425

Been running for a week now. For my 4th run decided to go for a zone 2 10k. The pace was pretty slow but I guess I’m still glad I could do it.

My question is would moving to a 15k for my next longer run be a good idea? Or how should I progress from here, I’m looking to be able to do a half marathon asap

Edit: Addressing the heart rate. I was nose breathing for the majority of the run and didn’t feel particularly out of breath which made me think it was zone 2, and that the heart rate from my watch was wrong. But any advice on that would be appreciated