
TLDR
- Move as many things as possible in regular life to the target language (software, tv shows, reading, etc) to maintain the language
- There is no substitute for full immersion if you have the opportunity. I learned traditional Chinese in Taiwan while I was an ESL teacher.
- The power of SRS (spaced repetition system) cannot be overstated
I will add my own bit to it. If you like mnemonic systems, Heisig wrote a very good book called "Remembering Traditional Hanzi" where the idea is to use the radicals in the character to construct a visual image to aid in recall. I highly recommend it.
https://uhpress.hawaii.edu/title/remembering-traditional-han...
That is a terrible learning outcome. I guarentee you that if you spent the same time with Remembering {Traditional,Simplified} Hanzi [0,1] you would be able to read more than a handful of characters. You'd also have intuition for novel (zero-shot) characters.
But I do agree you should practice writing, though -- as I argued in another comment -- I think the finger tracing is more about learning character shape rather than focused on teaching to write. That part is even important for reading. Though I do think Scritter, which uses fingers, will result in decent writing skills.
[0] https://www.amazon.com/Remembering-Traditional-Hanzi-Meaning...
[1] https://www.amazon.com/Remembering-Simplified-Hanzi-Meaning-...
Remembering Traditional Hanzi: Book 1: http://www.amazon.com/Remembering-Traditional-Hanzi-Meaning-...
Remembering Simplified Hanzi: Book 1: http://www.amazon.com/Remembering-Simplified-Hanzi-Meaning-C...
Take your pick.