You just need to copy and past the URL for the video, it'll convert it automatically for you
WEIRD Things You didn't Know About Igor Shesterkin - YouTube
To add Giphy animations, just click on the colored box in the bottom right of the post box
To post a picture, you should generally be able to just use the URL that points straight to the picture file (e.g. go to the picture, right click on it, select Copy Image Link and past it here)
If they need me to bleed, then I'll bleed for my team
If they need me to bleed, then I'll bleed for my team
to embed twitter, simply go to the tweet, then down the bottom you'll see what looks like an open box with an arrow pointing up, click that and then click "Copy Link" and then paste it here
https://twitter.com/OTGHockey/status/1692198902227996851?s=20
1936 New York Rangers:
If they need me to bleed, then I'll bleed for my team
If they need me to bleed, then I'll bleed for my team