Just delete your account on the old service. I deleted Whatsapp and most of my close friends were unwilling to install „another app“ at first.
I was fine with their point of view and we started texting via SMS. After a while they realized that switching is more comfortable than writing via SMS and they were fine.
Only works for close friends though. Others may simply cut ties then
A new saxophone. I have been playing the sax for 15 years and have kept my beginner horn ever since. A good sax starts at 5k though, so I‘ll probably need at least 5 more years at my current saving rate