Seeing so many people having problems posting pics, here's a "tutorial"--this is for posting pics from a computer. Many hosting sites have an app you can use to post pics from a phone, though; I don't use my phone to post pics so I don't use any of the apps. If there's pic on my phone I want to post, I'll email it to myself and upload when I have access to my laptop. But, the same hosting sites can be used on your web browser on your phone.
I use www.imgbox.com to post pics. Open the site in another window and keep GSPFF open also
1---Go to www.imgbox.com and click "UPLOAD IMAGES"
https://thumbs2.imgbox.com/43/fe/FK6EnbGb_t.jpg
2---This will lead you to choosing the pics you want to post. I make a folder on my desktop for pictures and store them there (you may store yours somewhere else on your computer). Choose the pics you want to post and click enter or open
https://thumbs2.imgbox.com/e5/2d/7ftc0IHL_t.jpg
3---You have a couple of options on the next screen you need to choose (don't worry about the comments or gallery options blocks)
https://thumbs2.imgbox.com/46/a0/WioLsdWz_t.jpg
4---Once pictures are uploaded, you'll see a page like this. Click on the link in the BB-Code block; it will highlight blue. Once highlighted blue, right click and click on COPY
https://thumbs2.imgbox.com/e0/e6/dcV4bu1C_t.jpg
Only 5 pics are allowed to be posted in each post. If you have more, you'll have to reply to your post in order to post more pics in that thread.