changing my ether PoE-in port from 1 to 5 in mikrotik RB951Ui 2HnD using winbox

hello pals ,
am still new to mikrotik using winbox , can anyone please help me to list out the steps in changing my ethernet port 1 to port 5 so my port 5 can serve as my wan port and give out internet please, my wan port 1 is bad

Starting with a default config or something derived from it.
Connect via ether2, 3 or 4.

In “Bridge” , “Ports” change ether5 to ether1 (ether5 is not connected to the bridge now, and ether1 is connected)
in “IP” “DHCP client” , replace ether1 by ether5. Now DHCP client is on ether5
In “interfaces” , “interface list” replace ether1 by ether5 for the WAN list. WAN list is used in the default firewall rules.

PoE-in is enabled in hardware only on ether1 so it is not possible to change it elsewhere (the same is true for PoE-out being limited to ether5). So besides changing WAN port to ether5 (as per instructions by @bpwl) you’ll have to use power jack to deliver power to the unit.