Twice a night doesn't seem like enough to be causing so much damage to your body. I have never used a pocket rocket but I'm guessing your problem might be the toy you are using. Maybe ask yourself why you need this thing rather than just a water based lubricant.

Also, I'm not a doctor but I'm guessing the hemorrhoids might be partially due to stress. The somewhat excessive masturbation might be your brain trying to find a way to relieve that stress.

Either way, I would definitely see a doctor because the infections could cause serious damage to your overall health. Maybe try an urgent care center if you have insurance. I do this for embarrassing issues because you get a different doctor who doesn't really know you. That helps me feel less embarrased. Remember, too, doctors have seen it all. It's not a big deal to them. Just tell the receptionist something vague, like you have sores on your groin area.

Be brave and take it one step at a time!