Please help with weight gain plateau?

i am 5'9'' and almost 16. I currently weigh around 155. My goal is to get to 165-170 by the season. I am eating EAS daily protien and working out M/W/F and going to a speed camp T/Th. Every day ive been running 3 miles. I am getting stronger, but am not putting on weight, actually lost a pound or two. Im eating all the time and drinking water constantly, what can i do to get that extra 10 lbs on before august?