Instagram crashing failing posts?

So, my instagram recently has been acting up. I've been trying to post some footage of me rock climbing and doing some other stunts off of my gopro that I recently got for christmas! GoPro Hero 7 white. And whenever I try and post multiple videos, it always fails. It either fails immediatly, takes 5 minutes then fails, or it crashes my instagram, making me redownload. After every single crash it says, "Try again with better internet connection" But my internet is perfectly fine and can load anything with no issues at all! I've tried connecting to my gopro Wi-Fi, and different resturant Wi-Fi and friends Wi-Fi but it never works. I'm getting really frustrated and I just want to post. Instagram is updated to the latest model. I've deleted and redownloaded instagram about 5-10 times now, and i've restarted my phone a countless amount of times. I don't know if it matters but I have an iPhone 7+.

Become famous on Instagram

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