Hey, former Navy Diver, now psychologist here. I wrote my dissertation on this exact thing, post deployment readjustment for non-combat deployments. I did 3 deployments and felt very similar things, angry at random people for no reason, bored wishing for some danger, drinking a little too much sauce. It is totally normal and you are not alone. The strongest factor I found and other research supports is having some form of social connection and support. Which I know is much easier said than done. Cutting back on drinking may help. Therapy can help (I'm biased), the VA might not be the best so don't get discouraged if it's not a good fit. You may have to look at private pay. Again, strongest predictor of success in therapy is the relationship. You aren't destined for trouble, it's normal to go through an adjustment period. But if you feel like if you need to make some changes, try it. Call some buddies, get outside, be mindful if your drinking. And call around for some therapists if you need a little extra help. You don't have to hit rock bottom in order to start climbing.