Glitching Phone Apparently Called Ghosting

Does anyone know why "ghosting" happens and how to fix it? Or what alternatives are? How can I manage these issues while still keeping the phone? Is the problem fixable? Is there something I am doing like downloading certain apps or such that could cause this problem? Are there specific things to watch out for like don't download any apps from Russia or the Middle East for example? Or don't go to web sites that aren't secure on the mobile phone?

Examples of what the errors are:

phone calls people without my instruction

texts and types words that I have not written on its own

the cursor on emails and webpages selects and unselects items on its own

opens apps/new web pages/starts a new text message on its own

adds recipient names to emails and texts without my instruction

sends emails and text messages on its own before I am able to finish compiling them

Restarting the phone the two different kinds of restart don't seem to help any.

This issue comes and goes every so often.

The phone is up to date and is not at full storage and is fully charged.

Anyone else get or have these issues?

Thanks.