Game problem

ok, if you haven’t already i have uploaded the beta version of my game

And if you noticed, you cant battle yet. What im trying to figure out is how to do the battle sequence.

What I have now is 2 timers, and if you click attack on your side you will do damage and then your attck button become disabled until the timer ticks. Then the enemy attacked when his timer ticked.
The thing is it’s impossible to win like that,
I need some ideas on how to do the attack seqeunce(ex: turn based, random damage, etc…)
NOTE: This is in Microsoft visual studio Visual Studio

This is the interface