Hadar Shemesh says stop correcting yourself mid-sentence when you speak English. Self-monitoring kills your flow and keeps you trapped in your head. Let what you've already learned work on its own.
Chapters
Now, here is one thing that I want you to remember. When you are out there speaking to real people, you should not be thinking about your pronunciation. You shouldn't be thinking about sound. You shouldn't be correcting yourself continuously. When you speak, you want to keep all the things that you've worked on outside of the conversation, outside of your head, because otherwise you will be in your head and not present in the conversation. So you don't want to always think about your grammar, your vocabulary, and your pronunciation, and you definitely don't want to constantly correct yourself.