Hot resister problem

[Greenkenzie]

Electronics help required.
Just working on my first saber. MHS parts as a base and some custom parts I made. Electronics, NB4, 3.7V battery, Tri Cree Red, Red, white, 26 AWG Wire. Got all the circuit together and seemed to work great. Only problem is the 2 resisters together are getting very hot. Too hot to touch after 10 seconds and I don’t know why? Resisters are (should be) 1.5 ohm 3 watt. Wiring is a bit of a mess as I didn’t buy enough, so had to use odd colours..Followed the circuit diagram in photo.
Also final question, is it ok to splice in a bit of 22AWG wire as I don’t have any 26 left and don’t want to buy more. Any help much appreciated.