I am sorry to hear that you feel that way about Clixsense, however i think if you click the 4 ads daily, plus the other ads that come along that should easily cover you yearly premium memberships.
Do you have the toolbar installed, to catch ads as they appear?
Tasks can be specific to your location, so i can't really comment much on them, have you tried checking them at different times throughout the day, sometimes there are more at certain times, remember there are only so many of certain tasks, so if you don't get in early they will be gone in no time.
The clixgrid is a game of luck, i have never won it although i don't really play it to often.
The real big money in Clixsense is through gaining referrals, i promoted years ago, way back in 2007 and got around 35 first level referrals, didn't really do much other than click the ads daily for about a year after and stopped promoting, and then something quite strange started happening, i kept gettitng a dollar or two added here or there throughout the month and then this started to increase to a pretty decent amount considering i wasn't doing anything for it, it was my original 35 first level referrals and their promoting efforts to gain referrals that i was making the money from, even today although i have not promoted Clixsense since 2007, i still make cash each and every month from upgrades 8 levels deep for no work on my part.
In total i have 526 active referrals of which 32 are upgraded, and i have earned $316 from them in clicks, sales and upgrades, i only promoted the program for about a week in 2007, so not bad for my efforts all them years ago is it?
I hope you guys start getting lucky on the Clixgrid and more task come available, be lucky