Hi,
Feel free to read this, types of mental health care practitioners in Malaysia:
https://forum.lowyat.net/topic/3542688

Based on your case, I would like to recommend you to try therapy below:
1) Integrate nutritional and mental health services will be suitable for your case, for example: nutritional therapy+hypnotherapy ( It can be natural and permanent after you learn the skill of self hypnosis).
2) EEG biofeedback to change your brainwaves, thus it will improve your mental performance as well
3) Psychotherapy such as CBT to change your mindset and behavior