Try IMGUR. No right click needed. (It is still free too!)
Follow the directions to sign up now and upload at https://imgur.com/
After you upload you can click on a thumbnail picture and when the picture opens, at the right side are options.
Click on COPY under the Direct Link option. That will copy the link you need to paste into an FSM post.
Posting into FSM would be another topic. If difficulty there, just ask.
Nino