There is an alternative for Adsense if you are not really doing good on the latter. You can try other ad networks if you want but I tell you, if you can't do good in Adsense, the more in other networks. So what is this alternative?
Try online data entry jobs instead! This is one of the hottest trend in online money making nowadays. There are many online entrepreneurs who are now taking as sideline online data entry jobs. But there are those who are making their living having full time work in this niche.
So it will be your choice how are you going to take online data entry jobs. If you are not doing anything online money making then you can make data entry job as full time. You can make bucks here if you are just going to give yourself a shot and take seriously with it. So why not take a little leave from Adsense and look for data entry jobs instead?