Hello Ketoers! A little disappointment? Need a few answers.

Hey guys, so I don't want to fluff up this post to not make it too long. however, my question essentially is: how hard is it to lose those last 10 pounds?

I am a 21 year old male, currently in college, working out 4-5 days a week and running cardio as well as tamara occasionally. I started around 250 pounds, and I currently weigh 193. I've calculated my macros to be somewhere around 1650-1750 calories per day, 136g of fat, 109g of protein, and 22g or less grams of carbs.

I have been bouncing up and down on the scale, from 191-199 throughout the week. I am trying so lose possibly 10 more pounds to finally get those abs to pop out!! How long would this take approximately, if anyone knows.

Would a carb re feed day be beneficial to me due to my workout routine? Once a month perhaps? I have no problem continuing this way of living, I just want some answers and really want to lose these last pesky pounds! I am SO SO CLOSE!

I will also post this in r/ketogains to get some answers as well. if I could get any help from you guys that would be amazing!