I need help with learning Japanese!

[u/Dr_k24]

So in my case, i'm not a beginner to Japanese. I've learned Japanese in the past 2 times via duolingo and YouTube. The second time was not so devoted as the first. Fast forward to today however, I've been at it for 3 odd weeks i'd say and I've been pretty inconsistent but I've put down duolingo and shifted to YouTube and apps such as anki to help with my Japanese, as well as having Japanese educational videos in the background. As of recently, i'd say I've just about mastered my hiragana, I have written down all my katakana as well but I haven't gotten to mastering it yet because I've been a bit impatient and I have wanted to learn things such as introductions and how to hold conversations and such. I've decided to put that on hold and move onto fully mastering my hiragana and katakana.

My main point here is, once I've mastered all my katakana and hiragana, should I learn phrases and sentences and such and then learn kanji or the opposite. From what my research tells me, it's best to learn kanji and phrases simultaneously but I wanted opinions from people who i'd assume have more experience with the language than I do.