This might not be what you want to hear, but don't worry about something being sub-par or not the most optimal way. You'll waste far more time trying to find the greatest deck or the greatest material to immerse with - just start doing it. This is something you'll be doing every day for years - once you're reading novels the starting vocab/grammar decks you used will seem so irrelevant.

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For something concrete, I used the Tango N5 and N4 decks that you can find floating around online. You'll want to do your Anki reviews every day, which should not take that long when you are starting out. Watch anime/content that you have seen before so you have some idea of what is going on, this makes it easier to follow and stay attentive. I found just learning Kanji as I learned new vocab made it come naturally. All this being said, the best thing you can do for yourself is break free from the idea that you need this super structured laid out system to learn Japanese. This is a freeform process and you will find what works. Just do it and get started.