Actually you can learn a conversational minimum in like 3-6 months with regular and active practice. And it really will be a minimum. You’ll be able to explain yourself, ask something, keep up a simple dialogue and stuff like that. But fluency will still be very far away. I find it really helpful in my free time to read articles like example of past participle by promova. I already study on my own all the time, sometimes I go to tutors when the topic is especially hard. But when I need quick info, these tools are also great.