Need advice please 😭

Lauren

My almost 2 year old will NOT KEEP HIS HANDS OUT OF HIS DIAPER and he keeps... finger painting. 🤢😭 I’m seriously at my wits end. He’s had a onesie under all his clothes for over 6 months, but he discovered he can go up the leg hole. It’s been worse now that it’s summer and he’s wearing shorts. I’ve tried putting the onesie over his clothes, giving him cool (not cold) showers after he does it, smacking his hands, time outs, yelling, everything I can think of. Does anyone have any amazing advice or words of encouragement? I’m 25 weeks pregnant with my third and I seriously don’t know how much longer I can handle this!!! I’ve even considered just trying to potty train him because I’m so sick of it, but I don’t think he’s ready. Help me. 😭