Can anybody tell me how to post pictures from my phone I'm a millennial that sucks with technology
OK so the phone is going to be a bit trickier to help you with because it varies a bunch from Android to iOS, Samsung to Sony, Chrome to Firefox, etc etc. If you have a computer with internet connection, I would recommend transferring the files from your phone to said computer. If you're looking to post pictures entirely from your phone, you have two options. 1), my way which isn't user friendly or 2), use their app. Maybe you can figure this out, but on my phone I went to Imgur.com. They will not let you upload pictures if they detect you are on a mobile device, so I went into options and enabled "desktop site" which masquerades my phone as a regular computer. Then followed this guide the exact same way.
After messing around with the phone app for a bit, I've concluded it's about worthless for 3rd party hosting (maybe that is their plan) but it will still sorta work. Let me know if you have access to an actual computer. If not I will try to help you with the phone.