Speaking from personal experience as someone who started Mandarin from scratch on LingQ…
It really works.
My advice is to start with the Who Is She? series and don’t rush through it. Spend a lot of time with each lesson. Read and listen (separately, and together) throughout the day, not just once, and do the SRS for at least the first few weeks.
After that, you’ll know a large portion of the very common “connector” words and a few others.
Then, start doing the ministories and approach them the same way. Mix in some graded readers like Mandarin Companion for some variety.
Somewhere in here, it will “click” and your brain will start learning new characters much, much more quickly.
Once you’re sick of the ministories or just run out of them, start looking for basic YouTube content with native speakers who speak slowly and clearly, narrating their day or doing basic travel/restaurant/daily activities. My personal favorite is Story Learning Chinese with Annie. I’ve imported and studied dozens of her videos.
Content made for children is also useful at this stage. Peppa Pig, for example.
This is where I’m at after 7-8 months of spending maybe 30-60 mins/day on average, which excludes a 4 month break after the first 3 months.
I’ve been to China a couple times and, while I’m a very dull conversationalist, I can successfully navigate the airport, taxis, subways, hotels, restaurants, etc. using only Chinese. To me, this is a big victory and means the method “works”. Others may say it’s inefficient or that I couldn’t pass an exam, but I don’t care. It’s enjoyable and doesn’t feel like torture the way Anki does.
My current focus is simply expanding vocabulary because I simply do not know enough words to be an interesting person in Chinese. To do this, in addition to continuing with the videos, I will start each week by writing a short story about myself, my hobbies, my interests, etc. and ask a native speaker to translate it for me into the most natural Chinese they can. I’ll then study that story and learn the vocabulary. Over time, I expect to be able to have more and more in depth conversations about normal things that are relevant to me.
I think that’s about all I have to offer you, so I hope that helps!