Kicking the frustration out

There is nothing like a kickboxing class to release stress, anxiety, and the frustration caused by.....

a teeny, tiny strip of bias tape that won't cooperate and separated itself from the fabric I was attempting to sew it to.  How'd you guess?

It's a new apron, and it will be a great gift for a good friend when it's done, but getting to the done part is causing me a bit of frustration...