I'm a beginner who started playing Go a bit more than two weeks ago and I have been playing over and over during these days (I'm unemployed, so it became a sort of addiction). Though at the local club I joined offer me a lot of help and I think I'm not doing bad, I really want to become stronger, but it seems that I have found a wall that I cannot breach.
I'm looking for a way to go through that wall and keep becoming stronger, but I'm not sure about where should I focus my attention exactly. Almost everyone advice me to do tsumego over and over but at this moment I don't find myself in many situations like the ones I solve on the problems. In KGS, playing against people of 12-15 kyu I usually lose my games because I don't seem to be able to stop invasions of my territory.
What do you think, besides the omnipresent tsumego, that I should study or learn to be able to go further?
Thank you!
Dan