When I was at the age of 14 I want to study at Siam alone for the first time. I don't know how to do so I need to ask someone to join the rows up in the end.
When I was 14 I had to go to special classes, SIAM alone for the first time. I know the way that I would have to do so I had to ask someone nearby to attend school up until the end.
When I was 14 I must go to class at Siam alone for the first time. I don't know the way it would need to do so I have to ask the people around to go to class time in the end.