可以考虑下面几个说法:
1. I got assistance from my teacher.(用第一人称:从老师那里得到帮助.如果可以利用get并改变动词的话.)
2. I was assisted by my teacher.(如果可以改变时态,但不能改为名词.)
3. I got assisted by my teacher.(也可以利用get做句子)
4. I am/was going to get my teacher's assistance.
5. I am going to get assistance from my teacher.
还有其他的一些说法其实都可以,不列出来了.自己试试看.
希望帮到你.