My comments/questions are in the game file:

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8-12: You are correct that the left side is bigger. But, he is investing so heavily on the right that a play there may have become urgent. If he were to play 'b', you would have to play 'a', and your lonely 2-space extension could come under serious attack.
So when he makes a semi-gote move like K16, I'd recommend a play on the left.
( I may be wrong about this. Maybe stronger players might offer comments )

10: J3 or K3 looks bigger than F17.

14: Maybe C5?

28: You are over-focussed on one group which you probably cannot kill. While chasing it, you have built influence. Now cash in on that. Attack with M16. ( It may be prudent to play R7 first )

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Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207

It's somewhat hard to review a game someone won so decisively. However, I've tried to say what I could.

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We don't know who we are; we don't know where we are.
Each of us woke up one moment and here we were in the darkness.
We're nameless things with no memory; no knowledge of what went before,
No understanding of what is now, no knowledge of what will be.

A few comments on the opening.

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The Adkins Principle:
At some point, doesn't thinking have to go on?
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Visualize whirled peas.

Everything with love. Stay safe.