What should I do????

So it's this account I been using on Instagram since July of 2024 on my old phone and I know the password easily. About 3 months ago I got a new phone and I was still using this account and everything but recently today I tried to log back in thru chrome and it wouldn't let me. It keeps offering to send a code to the number on my old phone which I don't have anymore and I had to make a new account. Anyone else go through the same thing???