The normal way
https://www.youtube.com/watch?v=quyMljpkT88
The lazy way
https://whatthecraft.com/how-to-resize-a-t-shirt/
Or turn it into a top with peplum
https://www.youtube.com/watch?v=SKR2HVTMiw4
And here is a tutorial on how to also change the neckline to something more feminine.
https://www.youtube.com/watch?v=BQkuP4ItoCI
https://mellysews.com/2017/08/make-big-shirt-smaller.html
Or if you’re much smaller and much lazier, how about sewing an elastic inside at waist level, and making it into a mini dress?
