How to build up stamina before ejaculating?

Hello, I’ve got a quick question. Lately I’ve been a lot quicker in how long it takes me to ejaculate than normal. To be honest, it has kind of freaked me out and worries me.

So, are there any exercises, methods, basically anything I can do on my own to build up more stamina/tolerance, so I can go longer? Thank you :)

Check this thread out critter.

Revolutionary Method To End Premature Ejaculation

Thank you, sorry for the repeat post.