Thinking the Radberry Stitch.

Help, trying to tink Rasberry pattern but having trouble with the K1P1K1 tog. stitch. I’d rather tink than rip. Thanks.

These are never easy pattern stitches to tink and that goes double if you’re working with a slippery yarn. It’s a bit like tinking cables.
I tend to hold the knit fabric just below the sts to be tinked and pull the yarn out, releasing the 3sts, then get those 3 onto the left needle.
The other possibility is to try to insert the left needle into the 3sts and then pull out the working yarn. I don’t usually do this however but you might have better luck.