Entire Android Studio project deleted when uploading it to GitHub

I tried dragging my entire project folder into my GitHub repository from File Explorer to Chrome. GitHub then told me I couldn't upload more 100 files. Chrome then froze. I went back to Android Studio and my entire project was gone. In File Explorer the folder was replaced with an app folder with a .iml file inside and a .idea folder with a workspace.xml folder inside it. I checked my Recycle Bin and nothing was there. Any help would be much appreciated, as I spent almost 50 hours making my app so far and I don't have any backups.