its not that easy to setup usermanager need deep knowledge of routers than you can or u can hire expert to do this
or just gave me the access of your machine than i can configure for you. about your um pass
open you mikrotik from winbox in which you have installed usermanager go to terminal type this command tool user-manager customer print and you will get username and the password of your usermanager
Please give me karma if i have solved your problem
Please i'm new to Mikrotik and someone help me to setup my user manager and he claimed to have forgot the password. Please how do i recover the user manager password? Thanks