Currently reading a book, based on learning, but the introduction mentions a few people having learned a language in 3 months, Ultralearning. So, not impossible but it's going to take some work.
We should do a group then! I'm currently reading Ultralearning and it lays a plan and a more intuitive way to learn something. 25M here, going to grad school.
I would also suggest Scott Young’s book on Ultralearning. As technologists, we will need to engage in this certification treadmill for the rest of our careers. Scott’s book has helped me improve the efficiency of that process.
https://www.amazon.com/dp/B07ST3Z1Q6/ref=cm_sw_r_cp_awdb_t1_QgcjFb0J351PW