I thought that's what I was doing?
Discussion
It is. Mostly. You are downloading them from wherever it is you are getting the video, then you are using a client to upload them to whatever hosting service they default to. Looking at your history, it has been nostr.built that they are defaulting to.
If you don't have a paid account with them, there are file size limits, though. They recently increased the max file size for users of their free service to 21MB, but I am unsure whether they have a daily/weekly/monthly limit as well. The site doesn't say.
Also nostr:nprofile1qy8hwumn8ghj7cfwdehhxtnvdakqzrmhwden5te0v5hxummn9ekx7mqqyz8mzs95arw7l97wfwpp6frj0zs6gdfnvf3r7eqzzjztxuhefqqqc6w9ene it looks like the About page still needs to be updated with the new file size limit:

So maybe I reached my video limit? Would that only apply to certain clients? Maybe that would explain why I can no longer post videos on some clients but can on others?
What about Nostr Premium? Does that include video downloads and if so, is there a limit?
Or, is there a way to bridge my Telegram account to Nostr, which offers unlimited videos for free?
From what nostr:nprofile1qy8hwumn8ghj7cfwdehhxtnvdakqzrmhwden5te0v5hxummn9ekx7mqqyz8mzs95arw7l97wfwpp6frj0zs6gdfnvf3r7eqzzjztxuhefqqqc6w9ene said, it doesn't look like there is a daily limit, just a file size per upload limit of 50MiB. He's one of the main guys running nostr.build, so he would know.
That being the case, you shouldn't be getting blocked from uploading as long as your videos are under that file size limit each. The ones that I am seeing in your feed are WELL under that limit, so I am not sure why you would now be unable to upload...
I'm telling you, I think I broke the entire Nostr protocol. 😸
Not possible. It would be like thinking you broke the English language because someone with ear-buds in blasting music didn't hear you. Protocol is working fine. There's just something preventing you from uploading through whatever client you are using to nostr.build.
What client are you using for uploading videos through?
I'm unable to post videos on any of the desktop clients for various reasons, usually with a failure to load message. I'm also getting more error messages for other reasons. I moved from one client to another, leaving permanent damage in my wake. 😬
Do you have a strong Internet connection
I have an excellent internet connection. I've never had any issues and my posts are showing up fine on Telegram.
Can you see this video post? I published it on YakiHonne and it says 2 views but it isn't showing on my profile on any clients.

Where is this post, can you Reshare
nostr:naddr1qvzqqqy9hvpzqj3s2uktul2tky0h6fytpf3nnj6zm7pkexftvmv3l4zkwwqhdpwmqq2hyk33g96xknmtx5e4stfctfxh5nes2ecrs6maa04
I can see it on your post. No issues
Can confirm, and 50MiB can fit well over 5 minutes of HD video (720p)
Oops, sorry about that 😂
nostr:npub13ch6rllnruy5z2qm57836yw5zx4ytju4jl569jys6jhtp9furupsccdsaw please 🙏🏻