I looked through your logs:
You need to work on your BA usage during CotW, big time.
You are missing a metric ton of BA casts and with that the Withering Fire damage.
Get this WA if you don't have it yet:
https://wago.io/YkiN48e5v
Here a little explanation I wrote in another review request:
Your spell usage curing COTW seems very random. You are wasting a lot of BA procs and KC usages during your COTW windows.
-Be ready for that free BA proc and slam that immediately.
-Never use KC right before you get your free BA proc
Tip: Get the Withing Fire Weakaura, or one that's similar to really keep you in check of your spell usage.
Here a quick explanation of what to focus on during COTW:
Generally our GCD without lust is 1.2ish.
With lust our GCD is maybe 0.9
You have 4 sec intervals. First Spell is casted at 0 seconds (in theory)
Remember your 1st interval has COTW in it as well. So you "free" BA will be cast on the 2nd GCD. On all other 4sec intervals your "free" BA is on 1st GCD.
So you can without lust:
1st 4-sec-interval: COTW->"BA"->BW->Barbed ...wait....
all other 4-sec-intervals: "BA"-> KC->KC->Barbed ...wait...
(example rotation, always slam BA if you get any)
With lust you can squeeze one more global in there.
Remember: don't use KC as the last spell in the sequence