Steps you have to follow
1. Do some research on project before you join bounty and join bounty of good projects.
2. Try to concentrate on Quality rather then number of bounty campaigns.
3. You have to be patience as most of the bounties are more than 2 months now a days.
This is still not a guarantee that you will going to profit in bounties. It was being stipulated in some blogs that ICO projects were gone to almost 80-90% scam and you will only have the 10-20% to choose a good project.
And yes bounties are very profitable if you will do it rite
I am not agreeing with it. Maybe for higher rank it would be profitabke but for lower ranks will not be profitable.
I suggest to join Trading for it is one of the best way to learn and earn in cryptocurrency.