I have changed my skype multiple times, and somehow my friend is still able to find my IP! I looked at my old skype's & they cannot be traced back, however my current one can?

> I have logged into skype through my phone, and I thought that might be it. I did a test with one of my old skypes & it cannot be traced back? So why can my current one can?

Please help! I don't want to get ddosed/keylogged/doxxed!