I am guessing you are not being serious...
because it makes feel like a bit of a chump...

TRUE STORY last DEC/this JAN I weighed more than I ever have in my entire life... STATS 58 M 5'8" 198# (okay, 200#)
Did I change my diet?
Yes, eliminated the occasional soda, candybar and more frequent ice cream.
Worked with my Adult son to identify a reasonable calorie deficit.
My spouse is thin and does the cooking so we do eat healthily.
Joined a gym for the first time in my life.
Paid (through the nose) for a personal trainer.

RATIONALIZATION: I prefer to have someone else keep count and direct the set of exercises;
it is another (negative) financial incentive (besides the monthly gym membership) to NOT not show up/skip a "workout"

Exercised with the PT between 2 and 3 times a week (mostly three, occasionally only two).
RESULTS IN PROGRESS: Saw 174 on the scale this past week (okay, 174.7)... took the better part of 8 months not 3 weeks...

Anyway that's my story - weightloss is hard, not easy, and slow...