Forever project - a "mitre"

Started knitting a kind of a mitre a year ago and decided to continue it. Back then I only made the beginning of the cap and about 3 pattern rounds (ca. 15 rounds). This is how it's now (picture) but that's not even the halfway! The plan is to make it ca. 145 to 150 cm long so it would reach the knee area as my friend wants it. In other words, a forever project with my knitting speed :)

Have a wonderful Sunday!