My puppy is driving me crazy

He's reached teenagerdom. We are unfortunately in a tight spot financially right now and can't afford to get him fixed, though we certainly intend to. As a little puppy you could stick a bed with him in his playpen and he'd just nap most of the day. He'd wake up, we'd play a little, then he'd fall back asleep, etc.

Well now if you put a bed or any kind of soft object in there he just tries to hump it like crazy and whines the whole time he cant get it how he wants it. He NEVER naps anymore and just wants to be entertained constantly. If you aren't playing with him he just goes around marking everything constantly.

He's a damn nightmare right now. I can't wait until we can get his balls lopped off. Omg.