You mean as a sender and rbf is not possible i can use cpfp also but must include a change utxo?! Does this change utxo has to be the initial change address from the parent transaction? Doesnt it? If i sent with max amount is a cpfp even possible as sender?
For implementing CPFP, you need to have control over one of outputs of the unconfirmed transaction.
If you sender and you send the entire balance of inputs to another person, you can't implement CPFP.
If you don't send the entire balance, your transaction will include a change address and you will be able to implement CPFP.
Let's say you send bitcoin from address A to address B. (You have control over address A and have no control over address B)
If you send bitcoin from address A to address B. If you haven't sent the total balance, your transaction your transaction will be as follows.
Address A -----> Address B
Address C
Where Address C is your change address.
CPPF can be implemented by owner of address B and owner of address C.