Secure Wallpaper Edges and Corners

gonna be probably some so i think i'm gonna glue this piece on i think temporarily as this settles i'm gonna tape it over and then tomorrow when it's all dry i'll actually put like a wood glue or wallpaper appropriate glue and then tape it shut and that's when it will do its thing so this last piece is going to be super ghetto so i'm trying to basically create my own flawless seamless pattern here be silly to buy a whole new roll for this this is how legends are made here's what