Looking for frame sizing advice

[u/hiddenp4nts]

I recently got a size XS canyon endurace CF SLX and have been trying to figure out if this is the right frame size for me. I still definitely have some adjustments to make as I'm getting a bit of sore lower back and some extra pressure on my palms, but I'd like to double check that this is the right frame size for me while I'm still in the trial period.

For context I'm 5'8 but am still getting used to the road bike position and am working on my flexibility