My friend, the main problem here is that you are a piece down. Is not like you dont have plans, the thing is you dont have piece power to have at least one plan.
Advice: when you are a piece down, move on and look for another game, because playing such games wont help you and certainly you wont learn anything.
Good luck.;)
In my most recent game I felt like I had decent position, but I realized around move 17 that I had no plan. I felt impotent, and I realized that this happens to me often. Lacking a plan of attack, my pieces end up getting pushed around aimlessly and I invariably lose, barring a colossal blunder from my opponent. Any input, especially focused on moves 1-20, would be greatly appreciated.