KK in small stake NL Tourney

[Samystylez]

Hello

I played a MTT on everest. 1dollar buy in .
Unfortunately i dont know a converter that converts everest so i write down the situation.

blinds is 15//30 ihave like 4000 and opp has same

I have KK utg+1 i bet 100
all fold only mp2 calls
flop 4c 8d Ts

I bet 400 opp calls

turn 7c I go all-in opp calls and shows 7T

.....

what should i have done or just bad luck

thx

sam