It's too late for me to apply for scholarships...what do I do?

Same as address there's no sense got out of the exact thing you would like to do.

Teachers do not always know this information.  You need to discuss this with a school counselor. 

It depends on which scholarship you want to apply for. Your age, your educational field, your state board, and minimum marks are some of the major factors that will decide a scholarship.

It's not too late for all scholarships.  Some have deadlines in February and March.  Look for those and apply,  Talk to your school counselor about options, not your teacher.  Some colleges have automatic scholarships that they offer to anyone who meets minimum standards.  Make sure your FAFSA has been completed, so that any need-based aid can be awarded to you.

Rejoice and skip college altogether.  Your future finances will thank you.

It is not too late at all, and no teacher would tell you that.

Don't believe him. Go to the college office & ask. When I went, several scholarships were unapplied for.

Apply anyway.  What have you got to lose?

Isn't there a counselor at your school? You should have been told to have your parents fill out the FAFSA form in the fall. That gets analyzed, and the results sent to the colleges you apply to. Then they make you a financial aid offer. What you need to do now is to talk to the financial aid office at the school you want to go to. Many schools have put into place ways of helping students, especially during COVID. 

I doubt very seriously that your teacher is aware of every available scholarship from every college you may go to.

Each college’s financial aid department publishes a long list of every scholarship on their website, or can give you a list if you visit their office.

What to do?  My advice works in every case.  Whenever anyone tells you you can’t do something?  Prove them wrong.