Potty training? I’m SO cluelesss

I don’t even know where to start or how to even do it. This first child. He is about to be 19 months. His Sister is due in June and he’ll be 23 months.

He’s been showing signs since 13 months. He takes his diaper off 24/7. He followed me in the bathroom and wants to flush the toilet. Sometimes he even wants to sit on my lap. When I try to put diapers on him, he gets so mad. He wants to be naked. When he pees, he looks down and watches himself. He’ll even grab himself when he’s done.

I tried potty training a few weeks ago, but I am clueless so I stopped after 2 hours. Every time I put him on the potty, he doesn’t stay long enough & I don’t want to force him.

I need all the tips. Like I know nothing lol