Are practices of lasting long safe?

I have sort of premature ejaculation (PE). So, when I look into tao practice.

I could see some of the practices such as:

1. rubbing of penile shaft with baby oil/coconut oil to make the tip insensitive.
2. Contraction of prostate gland so that you send sexual energy moves upwards and you have brain orgasm.
3. Also I read about pulling penis gently downwards to make it long, haven’t come across making it thicker.
4. To do testicle breathing

Will these really help with PE? And is it safe?

Thank You