Hey panda - welcome. I'm new to the forum but am very good friends with recovery and addiction. Congratulations on making the decision to get sober!!
Browse the threads on what medications and drugs to take during opiate withdrawal. Dextromethorphan (in cough syrups), in dosages recommended on the battle, helped myself and other people. Loperamide (immodium), also seems to help immensely. The physical stuff sucks, but you'll get through it. The danger is post acute withdrawal, or PAWS. This is where you are no longer going through withdrawal, but you have depression, strong cravings, and don't feel like yourself. It can last quite a while so you need a solid plan to get through it. If you don't exercise or work out, start. It doesn't matter what kind of shape you're in, just do it. If you can't do much, start taking walks. Do not take this advice with a grain of salt. Doesn't matter if you think its silly or stupid, just do it anyway. Every recovering addict will tell you this actually works, its no joke.
Please consider going to some kind of group therapy, such as SMART or NA / AA. You said you "need all the support I can get", so this is why I'm being pro meetings. I would be happy to give you more information on either via PM if you don't want to chat about it in public. I could not do 12-step format so I joined SMART recovery, which has addicts, alcoholics, junkies, gamblers, everything, and takes a cognitive approach to addiction recovery, whereas AA is more about spiritual awakening. Both are not for everyone.
Keep posting here. It's going to get worse before it gets better, but there is a light at the end of the tunnel. Just think about what you're working towards; the return of your emotions, feeling healthier, more money in your pocket, no more high risk behavior, not a slave to a pill!
You can do this