Moving from the 3rd dimension, through the 4th dimension to the 5th dimension

When I want to make contact with the Arcturians, how can I protect myself from the "non-light beings" in the 4th dimension, and do I need to experience unconditional love before I make contact, or will I automatically know if a being is able to show me unconditional love, so that I know who I am dealing with?

Because I feel I am ready to make contact, and I believe I have experienced unconditional love once about 3 yrs ago, but I just want to make sure that I am truly ready.

By the way, from what I can remember, this will be my first time moving from the 3rd dimension up to the 4th and 5th dimension. I think I saw ghosts or atleast talked to them when I was about 2-5 or so.

I would appreciate the advice. Thank you, and bless you!