I have a 5 year US visa and I don't know what to do ?

Your visa does NOT allow you to stay for 5 more years. And it does not qualify you for permanent residence.

If you ever want to come back to the US in this lifetime, you need to be gone by the date on your I-94

That's a multiple-entry visa for tourism only. You are only allowed to remain a maximum of 180 days out of any 365-day period. You cannot stay more than 180 days, or your visa will be revoked. Furthermore, any stay of 183 days or more makes you subject to US income taxes on worldwide income from ALL sources.

You do not get any green card just because you've been in the US for some length of time. In fact, overstaying your 180-day limit at any time ensures you will never return to US under any circumstances.

That's not what a 5 year visa means

You can only stay in the US 180 days in any calander year, a 5 year visa means you can do it 5 years in a row before you need to apply for another business

More likely you have a visitors visa that allows you to make short visits over the next five years, not that enables you to remain for 5 yrs

You'll need to state what visa you have. I'm not aware of a visa that allows anybody to stay for 5 years. Even a work visa is usually only valid for 3 years before it has to be renewed.

Whether or not your visa is a path to permanent residency depends, again, on the visa itself.

You try to know about uk visa proses and help loacal visa office.