I can't use skins on my Minecraft

I have paid and played Minecraft for the first time 3/4 days ago, when i choose skin for my Minecraft, I can't use it. There is a statement that the size is not compatible, but when my friend tried to use the same skin on a different device and account, IT ACTUALLY WORKED and i dont know why i cant using my own skins. The size of the photo for sure is 64x64, but I still can't use skins for my Minecraft. ALL THE SKINS I HAVE TRIED but THERE IS NONE that I can use. But my friend can use my skins. I already reported it but still it didn't help me to use my skins. PLS FIX THIS BUG, i almost stressed out. Fyi, my device is capable for playing Minecraft (im using android) and my network is really good.