I wanted to download some apps but it kept on saying review your account

The resolution to this issue is often making sure you have entered a credit card or other valid method of payment* even if you don't plan on needing to use it. The document 'If you can't remove your last payment method or use no payment method with your Apple ID' mentions "if you're using an existing Apple ID with the App Store for the first time, you must provide payment information," in this link: https://support.apple.com/HT203905

If there is an option to select "Review" or "Continue", select that and enter valid payment information if required. If there's problems doing this:

Tap: Settings > [your name at the top] > Media & Purchases > View Account > Review Apple ID.

More things to try in this 2018 post by Urquhart1244 marked Apple Recommended:

https://discussions.apple.com/thread/8434425?answerId=33542414022#33542414022

If you continue to have problems contact Official Apple Support - Select your region from the list and then your country from the pop-up window. If you do not see your country, see if there is an "other" listing for that region.

https://getsupport.apple.com/?caller=cups&PGF=PGF63005

*Payment methods that you can use with your Apple ID - https://support.apple.com/HT202631

Log into your account in the App Store/iTunes and you should be able to change/verify it there.

How to Fix “Verification Required” for Apps Downloads on iPhone and iPad