I need help for my Website with a few things.

for 1st picture, you can use paypal merchant services -> donation button, you just need set some options and copy paste the code you get from paypal to your wordpress widget (use “Text” widget)

2nd picture, use “Text” widget, but i recommend use facebook like box (official from facebook) and just like above, copy-paste code you get from facebook to “text” widget

3rd picture, i think use another software like MyBB (like on your picture – its free) is better than use wp forum plugins.

Text Widget?
Where do I get that and I want to know how to add things to the side like where my username is and log out.

create a subdomain and upload it to its root level using FTP. When you access the index page,the installation will start.

Also, where do I add a MyBB forums, can you link me please?

you can use sub-domain or directory (https://mybb.com/)

take a look at a red box, tthat`s called by “text” widget

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Can someone help me like on Team Viewer, or do they have like Xfire, Facebook, or something?

Like Skype, TeamViewer, Xfire, anything.
I’m new to making Websites and have NO idea what I’m doing.