Question extract email from (myname)@(mydomain)

Apr 29, 2021
3
0
10
hello,

i used to own a domain i bought from namecheap last year,
and from then i used (myname)@(mydomain) in daily basis at work / school and to contact my relatives and friends.
suddenly the cost of the domain became incredibly expensive.
is there any way to extract my contacts all in once, or i have to set copy one by one before letting away the email. https://ibb.co/ZdWSrs8
please help, i'm not very good with computers, i paid to a friend help me to set everything up, i just open myname@domain in (privateemail..com) and work with it.

thanks in advance.