Review favor (3k vs 6k)

Please help me get rid of my bad habits

I took a very slippery start (not to mention later hallucination on libs)
How did it go wrong?

Obviously letting black play K5 and connect 3 groups was not the best strategy :wink:

Playing sabaki is nice when you are in your opponent’s zone of influence, however the lower right was yours. As far as I can tell K4 is not joseki.

Personally, I am not a fan of fifth line fuseki, and 5-3 or 5-4 are not recommended on 19x19. I would think that they are even less recommended on smaller boards where you need to grab points quickly.