Hi!
I've been in affiliate marketing (not mobile) for about half a year now, and i'm happy to join STM. Since i'm a total n00bs in mobile offers, i hope that i can share and also get advice from you guys here.
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Here's some info about tools i'm using:
Offer: Psafe Brazil (recommended by AM, since it has high volume)
Network: F5Media
Traffic source: Decisive
Tracker:
Payout: 0.64
I've been following the caurmen's appetizer menu, thus creating and running 4 campaign (app/wifi, site/wifi, app/mobile, and site/mobile) for few days. i killed two campaign.
And in between those few days i also created new campaign using new angle and banner, plus blacklist data from previous 4 campaign. i killed three campaign from this campaign angle.
Here's the result of the campaign.

I run the 3rd campaign for about a day, but the volume is running very slow (since i blacklisted few carriers/app/site/etc with big volume but unprofittable). After cutting here and there, today i ran those 3 campaign, and all of them are running very slow. Here is the stats

What do you guys recommend? Should i switch into other offer, or i look for other traffic source? since it seems to me that the first campaign is well optimized, only but with only $0.11/day/campaign i'm afraid that this is statistically irrelevant data.
Thanks before!
Updated stats for today
I ran the campaign all day, and only managed to get around 20k impression.

spend: $3.18
conversion: 2
revenue: $1.28
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total spend: $57.17

total revenue: 25*0.64 = $16
SUM: -$41.17
Dude, I'm no expert but I think with a little bit of optimization - testing some more banners and landers - as well as getting your targeting on point that you actually could have a profitable campaign. Would really like if one of the more experience affiliates took at look at this and correct me if I'm wrong. Keep at it bro!
Prioritise the angles/campaigns that are working the best.
Test new banners and optimise placements.
Set aside a % of your test budget for new angles.
Thanks @design2game for the encouragement 
@zeno: sure! thanks for the advice. i should back to basic and focus on testing new banners/angles.
However, yesterday i decided to look for other traffic source to get more volume coming. The result is that i got more volume coming, and got two of my campaign profitable.

ROI for the new traffic source : (7.04-6.08)/7.04 = 13.6%
ROI for decisive : (3.84-2.66)/3.84 = 30.72%
this weekend i will working on launching more angles/banners as zeno said.
Nice work!
Good stuff here @atmo4th .
Any updates? Looks like you are on the right track!!