Husband is underway rn

My husband is currently out at sea for 5 weeks. It's week 3 and it's so difficult. He recently got sea duty orders so he hasn't deployed or anything, but before this underway, the longest he had been gone was 3 weeks. So this is new for me. I'm 22 as well. It's all been really rough for me. I just really really missed him today. Im terrified for his upcoming deployment. If I cant last a month, how will I last 9?!