I started studying French from scratch on 22 nov 2017. I scheduled my test on 27 mar 2018. As I just had around 4 months to study, I studied hard. I bought an online course called cursodefrancesonline.com.br (is for Brazilian mainly, although it's possible to study from other mother tongue). There, I studied mainly writing (which they offered correction by french teachers for every unit studied), grammar, listening and reading. For the speaking skill, I started having classes with Iya (a Ukrainian girl who knows everything about TEF, TEFaQ, TCF, DALF, DELF, actually she is an examinatrice). She is quitte expensive for Brazilians, but I paid the price. I had 12 classes within those 4 months. She also helped me to tackle with writing test which I had to write by myself and she corrected before classes.
I used a piece of software to calculate how much time I spent studying not only on my mobile but also on my computer (RescueTime) and during this time I'd studied for around 550 hours and had those 12 hours of online private classes.
My results were:
COMPRÉHENSION ÉCRITE 259 C1 CLB 9
COMPRÉHENSION ORALE 271 B2 CLB 7
EXPRESSION ÉCRITE 308 B2 CLB 6
EXPRESSION ORALE 205 B1 CLB 4
I had to stop learning french because I needed to get my CLB 9 in the IELTS test. So, I tried the IELTS the first time on 10 apr 2018, without studying, and I got an overall 6.5, so I saw what I needed to focus on. I retested on 28 sep 2018 and got the CLB 10 (=D), and then switched to French again. I started studying seriously on 05 dec 2018 to revise everything, all the grammar again until advanced level.
From 01 feb 2019 I've been studying the test format again. I bought 7 private classes with Iya. 10 classes with another Brazilian teacher and other 15 classes with other two French teachers. I wanted to mix not to be stuck in one way of thinking. Moreover, I'm taking online virtual classes everyday in a new type of classes in cursodefrancesonline.com.br, there are 4 conversational class per day, with guided speaking, so I really hope to achieve the 310 I need in Writing and speaking. If I would say the total of hours I studied, I'd say almost 900 hours. I will retake the test on 13 mar 2019 and if I need to do it again, I'll redo on 07 july 19.
I really appreciate the links and sources you all have shared here. Thank you so much!
As soon as I have my new results I'll come back here.
But just to clarify, I think it is possible to get a CLB 7 in every skill as long as you study hard. I suggest to count your time and be strategist.