Hi and welcome Herbie
as scary as it is, the very best thing to do is see your Dr and have a checkup. You'll likely to find that things are not as bad as you fear
as far as sleep goes I used booze too, but after a sleepless night or two things got a lot better. Same with energy.
There are millions of people who have sleeping issues and are still good attentive parents.
Give it a week or two