I agree about the grammar, German grammar is a lot to learn. I learnt at school/college and a bit higher so I don't know about audio courses and such but once you get some basics learnt, you could always find something like a German radio station that you could listen to, something with a lot of talking, to immerse yourself in how it is actually spoken, rather than learning parrot fashion. You may not understand much at first but you may be surprised just how much you pick up. I put some suggestions for language learning on another post recently, as did others, if that is of any help?
https://www.theanswerbank.co.uk/Jobs-and-Education/Question1574867.html
There must be some German programmes which you can get with subtitles on. I can't think of any recent ones, it's been a while since I watched any, but hopefully someone on here can suggest something.