Good news! There are userscripts for each of your complaints. (I also added my two cents on each in the spoilers)
Script to automatically display info when you get a question wrong : WaniKani Review Wrong Info Click (as already provided above by @gzovak)
I don’t like to use this one because when I answer incorrectly, I like to make myself think about what the correct answer is before checking it in the item info
Script for preventing you from automatically skipping past a wrong answer due to bashing the enter button : Wanikani Mistake Delay 1.0.3 (Block 'Enter' for 1s if answer is wrong) [No longer supported]
I use this one. It really does help as I, too, am an enter button basher.
Script for automatic pass to next question if you answer correctly : [UserScript] WaniKani Lightning Mode
I don’t like to use this one because a lot of the kanji/vocab have synonyms and sometimes I like to look at what those are before moving on to the next review item
I hope this helps you enjoy WaniKani more. 