Hi Folks

I completed by A2 exams a couple of years back but then did not practise.

Realised that I now need a B1 certificate and the exam is in a few months (04).
Have been working on my German but challenging to find the time with all the stuff at work.

Questions/advise from people who have done this successfully:
Can you get to B1 level in 3-4 months?
If so, how much time do you need to devote to the same (I recognise that many factors come into play in terms of ability to comprehend, immersion etc.)
Does B1 allow you to have conversation with Native German speakers or is that further along i.e. B2 or C1?
What has worked really well for you? I have been spending 90-120 mins daily to work on my German (Podcasts, Memrise, Youtube etc.) but open to other suggestions as well.

Thanks in advance for all your help.

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Logotherapy
That which gives reason for being.