Be really sorry for getting a thrill from, personally (4,7)
I believe the answer is:
kick oneself
'be really sorry for' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'a thrill from personally' is the wordplay.
'a thrill' becomes 'kick' ('kick' can be a synonym of 'thrill').
'from' is a charade indicator (letters next to each other).
'personally' becomes 'oneself' (I've seen this before).
'kick'+'oneself'='KICK ONESELF'
'getting' acts as a link.
Can you help me to learn more?
(Other definitions for kick oneself that I've seen before include "be annoyed at missing opportunity" , "Regret failure - inwardly put the boot in?" , "Be angry at own stupidity, ignorance" .)