for those with Instagram issues, obviously the easiest way is to have a smart phone & just do it directly. Remember though that Instagram lowers the quality of the image so you may want to keep the original photo as well depending on what it’s of usually.
You can edit photos on most phones & then of course Instagram itself has all of its edit facilities.
Most phones can connect to a computer to take the photos off. You generally just use a USB cable- usually just the one you charge your phone with. Then your phone essentially just acts like amemory stick and you can just drag & drop what you want on and off your phone as normal. (You can put photos on your phone as well as remove them).
You can email them to yourself from your phone, but may well lose quality again. If I email photos to people from my phone, I always get asked as to the quality I want to send them in. Sometimes you can’t send the highest quality image by email as emails have a limit on the size of file they can send.
If your phone & laptop/computer has Bluetooth you can always send them like that too.
All of these methods are free presuming for emails you have wifi/enough data.
It’s also worth remembering that if you’re using a phone that isn’t a smart phone (or even if it is), how decent is the camera on it? The older the phone the lower quality the camera & the grainier your photos will be. So for people using smartphones or computers to view Instagram the photos won’t look an amazing quality.
If the camera on the phone is old, it’s probably not worth bothering & you’d be better off using an actual camera to upload photos that way.
Not sure if that’s helpful to anyone. Just thought I’d try & shed some light. I personally use Instagram (I love it) but I only use it on my iphone so can’t provide any direct help with using Instagram on a computer.