I tried everything my phone still has not sound when someone calls or messages

Hi J-gp03.

Welcome to the Apple (user-to-user) Community.

Re: I have no notification sound for calls messages or notification

Checking for "silent" was a good move!

Hard to guess the precise cause of the situation from your info ...

... so hope the below info. / linked articles will help troubleshoot:

If your iPhone isn't working right, try re-starting it ... will often restore order.

Turn iPhone on or off – Apple Support

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Else

Maybe carefully checking your notifications will reveal the cause:

(Keep scrolling, as there are various ways to interact with / turn on / off notifications)

Use notifications on your iPhone or iPad - Apple Support

and

Change notification settings on iPhone – Apple Support

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Check ringtones etc. are not set to"none", but to ones that you want / can hear well.

Use tones and ringtones with your iPhone or iPad - Apple Support

and

Change iPhone sounds and vibrations – Apple Support

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Or

Wondering if this may be something to do with a focus, like eg: "Do Not Disturb:

(maybe it is being accidentally triggered)

Apple support's article:

Turn on or schedule a Focus on iPhone – Apple Support 

says:

"Note: If another Focus is already on, it turns off when you tap the new one".

Also says:

Turn off a Focus

"When you’re finished using a Focus, you can quickly turn it off to allow notifications again. 

After you turn off a Focus, it still appears in Control Center and can be reused.

Do any of the following:

Touch and hold the Focus icon on the Lock Screen.

or Open Control Center, then tap Focus.

or Tap the Focus that’s on to turn it off".

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More support if needed:

iPhone Support Team:

(There's a "Get Support" link at the bottom of their webpage)

iPhone - Official Apple Support

All the best :-)