I personally recommended anyone who's just starting out or are struggling with grammar to go watch this series on youtube (the voice and the avatar take a bit to get used to). She explain the idea behind the grammar as a consistent, logical thing and not just some collection of random rules and exceptions like in the textbook.

She also has done a lot of videos on how to study Japanese which I recommend watching. The gist of it involve creating for yourself only one core Anki deck, filled with the only most common words that can be used anywhere (because each type of media you consume have it own set of core vocab and it's impossible to have a core vocab that encompass them all) . Then you watch anime with J-sub, pausing each line to translate what being said, adding new words to your Anki deck as you do. After finishing each episode, you cut out the audio file and play it in the background whenever you can. Checkout this series for more details and explanation and the methods to do it .

After studying both Genki and Tae Kim and Heisig, I can say that for me her way of teaching is the best. I'm not even at intermediate level yet though so take this with a pinch of salt and try it out yourself to see if it suit you.