my apple id on my phone isn't highlighted; can't access apple id info on phone

Hiremfin,

Re: can't access apple id info on phone

See if this Apple Support article (link below) helps:

Sign in with your Apple ID - Apple Support

Eg: says:

1. 1. Open the Settings app.
   2. Tap Sign in to your [device].
   3. Enter your Apple ID and password.
   4. If prompted, enter the six-digit verification code sent to your trusted device or phone number and complete sign in.

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Re: I am not able to install or update apps.

You may need a payment method in your Apple ID account for the first time you use the App Store or iTunes.

(This is required even if you only download free apps.)

How to: Change, add or remove Apple ID payment methods – Apple Support

And

If you can’t download or update apps on your iPhone or iPad – Apple Support

All the best :-)