How to Overcome Training Gap

I’ve been running consistently since April and am training for a half marathon in a little over 10 weeks.

I have a newborn and drastically underestimated how exhausted I’d feel. It’ll likely be 10 days between runs and I’m curious how I should approach it.

My longest run was 7.5 miles and I’m thinking of an easy couple of runs around 4-5 miles and have my long run be 6-6.5miles initially before ramping back up to 7.5 miles+

I’m already reconsidering what would be a successful time for the half marathon and would appreciate any suggestions on how to get back into the groove physically and mentally.