I have been running my own PT instance for about 3 years now. I only post videos of things that interest me, plus a videocast of a The Linux Lugcast podcast we do. I don’t post video after video like that. It’s very sporadic. PT is not YouTube, you will not find that level of engagement. If you are looking for lots of eyes on your content, PT is not the route to take. If you are interested in federation and want to move away from centralized platforms, it is good for that.

You didn’t mention if you were joining an existing instance or hosting your own. That will determine whether your current PC is adequate or not.