Without any direct practice, the science you get is slow showing significant progress. Try the practitioner, even though it may not be in an active English user environment, you can look for other means through social media for example. It does not have to be perfect to start speaking English with strangers. In fact, during this talk practice, you will find new insights, pronunciation or other things. Do not bother with the grammar that is destroyed, as long as the other person understands, the communication will work well.
Next practice at teaching english in thailand, reading an English book! Difficult? Not really. Begin first from thin books such as children’s story books that usually use simple language. When you are sure of your ability, dare to challenge yourself by reading heavier readings such as the above book. As you familiarize yourself with reading an English book, you unknowingly begin to get used to English in its literary structure.