Check the link Rocket put in the thread. Max ATA, Luck and POW are all essential on any character other than Forces to be competitive.
A better armour and units would be your next step, as would weapons with hit % and attributes. Message me when you’re around and I may have a few items to help you out.
Don’t worry about feeling underpowered, most here have max stat event only items so you will feel like that but we are a friendly lot and will gladly run games with someone who isn’t as overpowered as we may be and help you hunt better stuff.
(Except when Happy Hour is on as we all tend to hunt then so you may not get much joy asking for help during happy hour in an event)