Since you are most interested in the end of the game, let's start at move 160. All large groups are now safe, so yose has officially begun. Are you willing to put in some work on the review? Try estimating territory in each region of the board. Also note where the unsettled borders are located and estimate how much a play in each area is worth. Which of these plays are sente for one side or the other? You could easily put in an hour of study on this exercise, and I guarantee it would improve your game.
For example, on the upper side, B has roughly 15 points of territory, and moves at M16, O15 or P16, and P19 are worth a few points each. This area is relatively easy to evaluate.
The center area around G11 is a little trickier. If B cuts at G12, can W do anything but give up that stone? If so, then W move 161 and the next few moves by both sides are pointless.
W move 171 threatens a huge cut at B3. How many points would that move be worth? Try playing it out both ways (W moves first or B moves first) and figure out the difference. Is there anything on the board which is comparably large? The value of the cut at G12 is now fairly easy to calculate.
B move 172 again missed the point, but W answered reflexively, so B gained a few points here in sente and then got to defend the B3 cut anyway. Who is it who likes to say, sometimes it is better to be lucky than good

A few more endgame comments on small plays which did not affect the outcome:
180) why not take the ko? At least make W come up with one ko threat.
181) no defense needed here, -1 point gote
224) no defense needed here, -1 point gote
227) no defense needed yet, 0 point gote
228) B spotted this first, 6 points gote!