Hello! I've been studying Korean for around 2 years and 4 months and when I fisrt started to talk with kroeans I'd always prefered talking with koreans in english and just say some sentences in Korean. However, when the time passed by, I wanted to start talking in Korean more and more, and I noticed that my kroean friends helped me too much to improve my sentences and also my speaking (when I used to do videocalls/calls with korean native speakers. i think you could try to communicate with them mostly in English and using jsut a little bit of Korean, and then, when you feel more confidence about talking in korean, you could start speaking korean mroe and more.
In my case, it worked perfectly well for me. I hope it also works so well for you :)
I hope I'd helped you!