It is not going to get any easier later, a baby at least sleeps every now and then but toddlers do not give you study time. You will be really sorry not to finish
high school, not only now (embarrassment in front of your friends and probably sometimes having to lie) but later, it gets worse not better with time. As you see above, you will be doing it for your child as well as for you; if you can't do it for you, do it for the baby's sake.