Hello skye. I have been learning Korean for half a year now but I feel like Idk how to approach learning it still. My brain seems to forget all the words I know when I want to speak but my passive vocab is huge. What am I doing wrong T_T I just seem to forget things I've learnt so easily :(

Maybe you need to apply what you've learned more? Like if you learn a new word, make a few sentences with that word so your brain has examples of how to use it. If you're a visual learner, start writing down things and looking at them frequently. Try to explore more learning styles and hopefully it will come to you!