If you have so many things you want to do that you feel regretful every time a day passes, would that be a happy life? Would it be an enjoyable one? What do you think?

If you have so many things you want to do
that you feel regretful every time a day passes,
if you live such a life, if you have such a personality,
would it be enjoyable?
Lately, these thoughts have been crossing my mind.
Devoting oneself to something
and living life passionately is truly amazing,
and I find myself feeling envious.
What would a life like that be like?
What would people like that think?
All sorts of thoughts are suddenly flooding in.
Since I'm always at home without friends to meet,
or always wandering around alone,
I have many things I want to do, but I lack the courage.
I've just been having a lot on my mind lately.