Face Grown Vertically is It Too Late to Fix with Invisalign?

Have you had significant weight loss in last few months?  If yes, that can affect your face as well and should prompt you to have a medical check up soon.  If it's only limited to your face and jaws, invisalign is not the answer but rather conventional orthodontia perhaps combined with expansion and maybe consultation with an oral surgeon after talking to a few orthodontists or general dentists experienced in advanced orthodontic treatment.  You should seek several opinions.

Typically your face/jaw is not growing anymore at the age of 21. But if you are concerned about your "crooked" teeth you should see an orthodontist. Braces are better than invisalgn if your face/jaw has grown in conjuction with expanding your palate.

At age 21, I doubt if your face has grown dramatically over the course of a few months. Go see your dentist and have him/her evaluate you for Invisalign now.