I'm stuck with the younger one at home, due to him contracting a disease
that'll take a week to recover. He showed the sympton the day before our 5-day
holiday trip. I had to make a decision. Given the uncertainties and for the
comfort of him recovering, I decided to stay with him at home, while mom
bringing the older one onto the trip.

It is now the 3rd day. Looking after a sick kid full-time at home alone is
overwhelming, and quite boring. I can't just bring him to any "fun" places,
because he's still recovering. So we mostly stayed at home. He also needs my
full attention, all the time (I need to teach him to play on his own) - which
is very demanding.

Here're a couple of things in this.

Firstly, decision making. I've always been bad at it. I found it's hard for me
to not think about the decision once I made it, but I find it's easier to make
up the mind, to focus on the benefit of one decision, and always remind
yourself why you made that decision. For example, in this case, the benefit
would be of the younger one, to be safer and more comfortable during his
recovery.

The other thing that comes to my mind, is that it's probably better to say
"yes" to uncertainties. I've found it's more regretable when I said no than
yes.