Transfer my iPhone storage to cloud because my phone is full

it's too different things as in you can't have apps in icloud storage and the likes

have you read

What's the difference between device storage and iCloud storage? - Apple Support

and maybe Manage your photo and video storage - Apple Support

Hello,

To put your photos online in the iCloud:

1. Go to Settings > [your name].
2. Tap iCloud.
3. Tap Photos, then turn on iCloud Photos.

This article will help you step by step:

Set up and use iCloud Photos - Apple Support

Just make sure you have enough online space in the iCloud to upload your photos. Should you need to increase your online space, this article explains how to do so: Upgrade to iCloud+ – Apple Support (UK)