I'd strongly suggest restarting and trying to get up higher level by doing all quests before going to battle tower adn clearing all areas except mine offices (Level 27 dudes).
Do all mind reading in village and other area first before exploring as you'll clear the exp quicker that way.
If you have trouble with this battle you're really going to get hit hard later. I had no issue with hurting the towers here (you are avoiding flying into red buble zones right? These red zones can be disable by switch in the bunker you can see near that area. Other zones can be turned off by destroying buildings...
I myself had no issues with this area, but was a bit higher level. Later when going to two other areas with dragon I had major issues. I made a thread about that actually. Main quest oriented later makes you enter an area and MUST be a dragon and you get swarmed by high level enemies. I didn't last a few seconds even trying to run from them
. Maybe need more work on my leveling
or tactics as I totally dismissed shield skill...
