Good learning process here. Many folks before you have just quit at the first failure and given up on the best glue around. Good for you for persevering. Hammer veneering requires a learning curve but once you “get it”, you will be able to do things that can be done no other way.
A few points
a) You can put that scraped up glue back in the pot
b) You don’t have to remove all the old glue.
c) The easiest way to remove the last of the old glue, if you need to, is with water and a scrubbing pad.
This looks much better. I can’t wait to see the project post of the veneer box now.
Congrats on the exercise. I think I may give you an “A”. :-)
The early bird gets the worm but its the second mouse that gets the cheese.