Humans in developed countries are in a position where we can reduce our harm to others. I believe that if you’re in a position to be safely and reasonably able to, that you should do your best to reduce the harm you cause. I would argue that reducing harm includes reducing the amount of animals that I eat.
However, none of this really applies to animals. They don’t really get the same privileges that humans do in modern society, nor do they have the conscious ability to consider their harm on the world. Furthermore, obligate carnivores don’t really have a choice but to eat meat, so they wouldn’t be able to safely reduce the harm they cause regardless.
If you are just getting started, this is a good resource for learning hiragana and katakana.
Past that, I used Anki and Bunpro for learning vocab and grammar. However, an alternative to anki for vocab that’s definitely worth checking out is jpdb.io, and Cure Dolly’s youtube videos are good for learning grammar.
There are also some decks that people have on anki which have sentences that you can practice on, I hear those are a pretty good way to start reading so that you can work your way to reading books/manga and stuff.
Here’s another website that’s worth reading through if you’re interested in doing immersion learning with japanese.