Need some help with my son

Chrissy • I love my family and proud mother of four beautiful boys and taken by my soulmate !
My son is three and is very hard headed and stubborn as hell I tired the putting him in the corner doesn't work I tired talking to him doesn't work I tired everything doesn't work and plus were trying to potty train him so it's difficult with my other two and he's like having another two I'm frustrated and need some advice I don't like spanking him and it breaks my heart cause he just doesn't listen