"Ensuring air traffic safety, by providing air traffic control services in different regions of the world" for ATC

Hello, I'm an Air Traffic control student from Lithuania and at the moment I am writing my master's degree job "Ensuring air traffic safety, by providing air traffic control services in different regions of the world". There are few questions, that would help me to know about Your job. Thank You for the answers!! Yours faithfully, Viktorija.
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1. Country where You work: ✪

2. Position: ✪

3. Experience in working as a ATCO: ✪

4. Education program, requirements and qualifications to the ATC license:

4.1. What are the educational institutions and their programs?

4.2. How long does the training take and is the training long enough?

4.3. How often re-courses?

4.4. Phraseology value/position in the training program:

4.5. Your opinion about course theoretical, training and the quality of simulator at the training institution:

5. What equipment do You use?

6. What are the procedures and work technology, at Your position?

7. Were there any aircraft accidents, during the period while You work as a ATCO?

8. If Your answer was “yes”, it was due to:

9. If it is because of the ATC, is it due to:

10. If the accident happened because of an aircraft crew, it was due

11. There are any unexpected obstacles, affecting the flight safety and when You can’t control them?

12. There is any aerodrome and maneuvering are protection at the airport You work in?

13. If the previous answer was “no”, does it affect the traffic safety?

14. What is Your opinion and suggestions that could improve the situation in terms of safety, where you work?