Guardian Visa and child's age(18) in Ontario

[Joshkim993]

Hello

My daughter(date of birth: March 1993) is currently
a high school student in Ontario studying on a student permit.
After graduating high school in June, she plans to attend a college.
I as her mother received a TRV(guardian) visa till July.

Now the problem is that I REALLY need to stay in Canada
with my daughter since she's very sensitive but
in Ontario the age of majority is 18
so she is classified as an adult in Ontario.
So with my knowledge I believe I can't receive
a TRV(guardian) visa this time.

Is there any other possible way for me to stay with her?
Preferably with a TRV(guardian)?

Thank you for your time and possible answers. ^^