Wheew, I thought I was a loner on this. Haha jk, I know that this is a huge frustration for most.
Thankfully, your girl Mandy scoured the Internet to find a solution.
Well, I found one. Thank to the website I found it from. •link to come•
Alright, this is a free way of using 2 iOS devices and a simple step.
That's my iPad, haha.
Step 3: Upload to Instagram (using the iOS device you sent it too.
Hope y'all found this useful!