Can I have two users account in my MacBook with passwords?

You can simply create another user.
From the Accounts pane in System Preferences, click the plus sign toward the bottom left.

And if you enable “fast user switching” it is super easy to switch between the two accounts.

yes I know I can create the account, but I want passwords in both of them…

New accounts are password-protected.

I’m not really sure what problem you are having is. It is simple. A new account needs a password.

The “guest” account does not have a password. It’s specifically intended to be used for one-off access. A guess can login with no password, do some stuff, and then when they logout, all the data from that account is deleted. (The account remains, fresh for the next guest to come along.) This is all spelled out in the Accounts pane in the System Preferences.

If you want a second account with a password, you have to create a new one in addition to the standard admin and guest accounts.

Check this out.