How do I add more pages on my phone for more apps as the touch and drag method didn't work.

Welcome to the forums. How many pages do you have? Some phones may limit them to five or six.

If you are at that point, I would suggest clustering similar apps together in a folder. Say group Twitter, Facebook, and Instagram in one for your social media.
 
I have a Huawei Y6 and I know nothing about launchers. I don't know much if it's not listed in the settings section.
Thanks for registering. Have you already tried pinching three fingers together on the home screen? That should give you your screen thumbnails and one of them with a '+' sign to add a new one.
 

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