I was dx with graves in 2009, temperamental issues are a problem! Ive found bisoprolol better as they dont make me feel doped up and calm my palpitations. I still have loads of symptoms but my gp is such an arse i dont bother going, instead ive gone down the self help route. Ive had a few years with my lifelong chum,so i know its funny ways and try to get on with things. Make sure your nutritional status - minerals, vits, trace elements are all abundant in your diet - low hb (iron) can revent free T4 converting, which causes problems with processing mentally - i found it impossible to follow instructions and maps/directions were a waste of time - i was useless!
Given your metabolic rate is elevated, b12 deficiency is always a strong possibility, so eat lots of oranges (high in folates) and look at taking a suplement such as viridian or solgar completes. I use viridians pregnancy complex - im not expecting - just that it gives me 100% iron and it works for me. Liver and onions at least once a week, (hate it but it works) and fresh fruit and nuts for vits, elements and energy boosts helps me. Lemon balm is really easy to grow and will fill a big tub in one growing season so you'll soon have more than you need ☺
Hops are good for restfulness, valerian for short term use (addictive) oats for soothing the gut.
Hope this is of use to you. Its a miserable disease but you can find ways to accommodate it. Look into CBT (cognitive behaviour therapy) too - its easy to implement - well,i found it so, and you can find loads of online resources. Good luck xx