I know I haven't been playing basketball in a long time but I noticed even when I am in shape, even though I am not out of breath I feel tired and not wanting to try harder to make a play. Then I take a slight breather and I have a lot of energy for a little while. Today while playing I had to leave halfway through the game since I felt like I couldn't run anymore. I sat out for about 5 minutes and was able to play another game. I understand needing rest but it seems like I am always the "lazy" one while some players are hustling up and down the court nonstop even if they are overweight or a lot older than me. I think I am mentally being lazy but I am not sure since I want to try hard.