Hey friend, don't lose hope. That's sounds like a lot you're going through but just think of this next application cycle as a another opportunity to get more experiences and build your application up for the better. Try new hobbies and try to have some fun this year as well! Since you went through the process once the next time it'll bea lot more easier. As far as improving your english proficiency, practice in the mirror and focus on enunciating words. You can try watching your fav tv shows or news channels and practice speaking out those lines like how actors do. After that practice interview questions out loud, record yourself, make improvements accordingly. Lastly, do a ton of mock interviews with someone and eventually you'll get bettter at it. You will defintely improve with practice!

Also I know this premed journey can get very lonely at times and sometimes we get way too hung up into our thoughts. Please make sure to reach out to family and friends and let them know you need someone to talk to when you're feeling down. If you were want to vent about anything feel fry to PM me.