Utilization is the key. Since I got married I have been learning Spanish and new computer languages and the only thing that makes a difference is regular practi

Utilization is the key. Since I got married I have been learning Spanish and new computer languages and the only thing that makes a difference is regular practice. In addition to the effort, omidfi's point about accepting the time commitment is important. English text books can help, and understanding syntax on a theoretical level will help you with the criticism that your sentences don't flow (skipped articles, short sentences, etc.). For your accent, if you choose to modify it, the most effective method I have seen is recording and then listening to yourself. Compare those recordings against someone like a newscaster. They work to develop a "generic" non-regional accent. If you can hear what you do, and then mimic how they sound, you will get the sound and emphasis you are looking for. All of this takes time...Good luck.