I don’t think so but I want to be sure!!
Both exist and are okay as long as they are used correctly.
Ex: He really thought – I said to myself
Wow it depends what you are talking about!!
With myself = yes I do with myself
With yourself = yes you are with yourself I’m sure!
with me = is with me
same = yes I know how to do it is with myself
It depends on what you’re talking about!
The Portuguese grammar for these things is called grammatical rules, the terms you ask for clarification are called redundancy.
See example;
I am with myself and I do not open!
I am with me and I do not open!