Thanks, tried to explain the best I could what I wanted to do 
Well, since this is for a simple costume, and the idea is to run just for a few mins at a time, without the HT-05 I was powering everything with a Powerbank and it was doing fine. Should I use a different power source for the leds? I intend to use it only in blue and quite low brightness.
While making the tests I was just powering everything from my pc, nothing else... and I've been running it for hours while looking for a solution