Instagram text box is so small!

The instagram text box on the Iphone 13 is tiny - literally 3 lines visiable! The whole screen is taken up with tag people, tag products, facebook etc etc etc and then the keyboard. If i try to 'pull down' it just bounces back up. This is ridiculous! I can't see what i have written or the hashtags etc. I've just moved over from an android phone - where you could see your whole page no problem - then scoll down as needed. Is there a button or something i can press to get rid of the 'tag people' bit and see the whole text screen i'm writing in?

Thank you.